📚 The Comparative Powers of the House of Commons and House of Lords | 下议院与上议院权力比较
In the UK Parliament, the House of Commons and the House of Lords have distinct but overlapping roles. The Commons is the elected, democratic chamber and enjoys primacy in most areas, especially financial matters. The Lords is an unelected revising and scrutinising chamber whose main power is to delay and amend legislation rather than to block it outright.
在英国议会中，下议院和上议院承担着不同但有所重叠的职能。下议院是民选产生的民主议院，在大多数事务尤其是财政事务上享有优先地位。上议院是一个非选举产生的修订与审查议院，其主要权力在于延迟和修订立法，而非彻底否决立法。
1. Composition and Democratic Mandate | 组成与民主授权
The House of Commons is made up of 650 Members of Parliament elected by constituencies under the first-past-the-post system. This gives the Commons a direct democratic mandate from the electorate. The House of Lords consists of around 800 peers, including life peers, 92 hereditary peers (due to ongoing reform), and 26 Church of England bishops. None of these members are elected by the public.
下议院由 650 名议员组成，这些议员通过简单多数制在选区中选举产生。这赋予了下议院来自选民的直接民主授权。上议院由大约 800 名贵族组成，包括终身贵族、92 名世袭贵族（由于改革仍保留）以及 26 名英国国教会主教。这些成员均非由公众选举产生。
The difference in democratic legitimacy is the root of the Commons’ superiority. The elected chamber can claim to speak for the people, while the Lords must justify its role as a revising body with expertise rather than electoral authority.
民主合法性的差异是下议院具有优势的根源。民选议院可以宣称代表人民说话，而上议院则必须以专业知识和经验来证明其作为修订机构的合理性，而非依靠选举授权。
2. Legislative Powers: Initiation and Debate | 立法权力：提案与辩论
Most government bills are introduced in the House of Commons, and all major legislation must pass both Houses to become law. However, the Commons normally dominates the legislative timetable because it controls the government through party discipline. The Lords can introduce its own bills, but these rarely become law without government support.
大多数政府法案首先提交给下议院，而且所有重要立法都必须经过两院通过才能成为法律。然而，下议院通常主导着立法时间表，因为它通过政党纪律控制着政府。上议院可以提出自己的法案，但这些法案很少在没有政府支持的情况下成为法律。
In practice, the Commons has the power to overturn Lords amendments, although it often accepts some amendments after negotiation. The Lords can ask the Commons to ‘think again’ but cannot ultimately insist if the Commons uses its majority to reject changes.
在实践中，下议院有权推翻上议院的修正案，尽管它通常会在协商后接受某些修正案。上议院可以要求下议院“重新考虑”，但如果下议院利用其多数席位拒绝修改，上议院最终无法坚持。
3. Financial Privilege of the Commons | 下议院的财政特权
One of the most important constitutional differences is financial privilege. Under the Parliament Act 1911 and long-standing convention, the House of Commons has exclusive control over taxation and public spending. The House of Lords cannot amend or reject a ‘money bill’ – a bill dealing solely with national taxation, public money or loans.
最重要的宪法差异之一是财政特权。根据 1911 年《议会法》和长期惯例，下议院对税收和公共开支拥有排他性控制权。上议院不能修改或否决“财政法案”——即仅涉及国家税收、公共资金或贷款的法案。
The Speaker of the House of Commons certifies whether a bill is a money bill. Once certified, the Lords may only delay it for one month, and the bill can receive Royal Assent without the Lords’ consent. This ensures that the elected chamber holds the public purse strings.
下议院议长负责认证一项法案是否属于财政法案。一旦认证为财政法案，上议院只能将其拖延一个月，之后该法案无需上议院同意即可获得御准。这确保了民选议院掌握公共财政大权。
4. Power to Delay: The Parliament Acts 1911 and 1949 | 延迟权力：1911 年与 1949 年《议会法》
The Parliament Act 1911 removed the Lords’ absolute veto over legislation and replaced it with a suspensory veto of two years. The Parliament Act 1949 reduced this delaying power to one year. Today, if the Commons passes a bill in two successive sessions and one year has elapsed, the bill can become law without the Lords’ consent, except for money bills (which have a one-month delay) and bills to extend the life of Parliament.
1911 年《议会法》取消了上议院对立法的绝对否决权，代之以两年的“暂停性否决权”。1949 年《议会法》将这一延迟权力进一步缩短为一年。如今，如果下议院在连续两届议会会期中通过同一法案，且时间已过去一年，该法案无需上议院同意即可成为法律，但财政法案（延迟一个月）和延长议会任期的法案除外。
This means the Lords’ veto is no longer absolute but suspensory. It can force the government and the Commons to reconsider and possibly amend a bill, but it cannot permanently block a determined Commons majority.
这意味着上议院的否决权不再是绝对的，而是暂停性的。它可以迫使政府和下议院重新考虑并可能修改法案，但无法永久阻止一个意志坚定的下议院多数派。
5. Amendment and Revision Role of the Lords | 上议院的修订与完善角色
Although the Lords cannot ultimately defeat most bills, it performs a vital revising function. Because many peers are former ministers, senior judges, scientists, business leaders and other experts, the Lords often improves the technical quality of legislation and protects civil liberties.
尽管上议院最终无法击败大多数法案，但它履行着重要的修订职能。由于许多上议院议员是前部长、资深法官、科学家、商界领袖和其他领域专家，上议院常常提高立法的技术质量并保护公民自由。
The Commons is often constrained by party whips and the need to pass manifesto commitments quickly, so it may leave drafting errors or overlook consequences. The Lords can debate in a less partisan atmosphere and propose detailed amendments that the Commons may accept because they are not politically embarrassing.
下议院常常受到党鞭约束，并需要迅速兑现竞选宣言中的承诺，因此可能会留下起草错误或忽视后果。上议院可以在党派色彩较淡的氛围中进行辩论，并提出详细修正案，下议院可能会因为这些修正案不造成政治尴尬而予以接受。
6. Scrutiny and Accountability of Government | 对政府的审查与问责
Both Houses hold the government to account, but the Commons has stronger formal powers. Ministers are drawn from Parliament, usually the Commons, and they must answer questions, appear before select committees and face votes of no confidence. The Prime Minister and Chancellor must be MPs, by convention, and they are directly accountable to the Commons.
两院都负有监督政府的责任，但下议院拥有更强的正式权力。大臣来自议会（通常是下议院），他们必须回答问题、出席特别委员会听证会并面对不信任投票。按照惯例，首相和财政大臣必须是下议院议员，他们直接对下议院负责。
The Lords also scrutinises government through debates, questions and its own committees, such as the Constitution Committee and the European Union Committee (when the UK was a member). However, it cannot remove a government by a vote of no confidence, and no minister is accountable solely to the Lords.
上议院也通过辩论、质询和自身的委员会（如宪法委员会和欧盟委员会，在英国还是成员时）来审查政府。然而，上议院不能通过不信任投票推翻政府，也没有任何大臣只对上议院负责。
7. The Confidence Convention and Government Survival | 信任惯例与政府存续
The government’s survival depends exclusively on the confidence of the House of Commons. By convention, if a government loses a vote of no confidence, it must resign or seek a dissolution of Parliament. The House of Lords has no role in this process.
政府的存续完全取决于下议院的信任。按照惯例，如果政府在不信任投票中失败，就必须辞职或请求解散议会。上议院在这一过程中不发挥任何作用。
The Lords can criticise government policy and even defeat individual policy motions, but it cannot bring down a government. This is a fundamental difference in constitutional power: the elected chamber controls the executive, while the Lords can only influence and delay.
上议院可以批评政府政策，甚至否决个别政策动议，但不能推翻政府。这是宪法权力上的根本区别：民选议院控制着行政机关，而上议院只能施加影响和拖延。
8. The Salisbury Convention and Other Constraints | 索尔兹伯里惯例与其他限制
The Salisbury-Addison Convention states that the House of Lords should not reject or wreck a bill that gives effect to a government manifesto commitment. This convention arose from the Labour government of 1945, when the Lords had a large Conservative majority, and it prevents the unelected chamber from frustrating the democratic will expressed at a general election.
索尔兹伯里-艾迪生惯例规定，上议院不应否决或破坏旨在兑现政府竞选宣言承诺的法案。这一惯例源于 1945 年工党政府时期，当时上议院中保守党占多数，该惯例旨在防止非选举产生的议院阻挠大选中表达的民主意愿。
Other conventions also limit the Lords: it does not vote on money bills, it normally gives a second reading to government bills, and it avoids frivolous obstruction. These conventions are not legally enforceable but are politically binding.
其他惯例也限制了上议院：它不对财政法案进行表决，通常会对政府法案进行二读，并避免无意义的阻挠。这些惯例不具有法律强制力，但在政治上具有约束力。
9. Constitutional and Human Rights Scrutiny | 宪法与人权审查
The House of Lords has developed a significant role in examining the constitutional implications of legislation. Its Constitution Committee reviews bills for their impact on the rule of law, devolution, and the separation of powers. Similarly, the Joint Committee on Human Rights, which includes members from both Houses, reports on human rights compatibility.
上议院在审查立法的宪法影响方面发挥着重要作用。其宪法委员会负责审查法案对法治、权力下放和权力分立的影响。同样，由两院议员组成的联合人权委员会也对法案是否符合人权标准提出报告。
In these areas the Lords often exerts more influence than its formal powers suggest. Government defeats in the Lords on human rights grounds can force ministers to amend bills even when the Commons initially passed them. Recent examples include amendments to counter-terrorism and immigration legislation.
在这些领域，上议院的实际影响力往往超过其正式权力所显示的程度。政府在上议院因人权理由遭到失败后，即使下议院此前已通过法案，也不得不对法案进行修改。反恐和移民立法方面的修正案就是近年来的例子。
10. Composition and Reform Debates | 组成与改革争议
The unelected nature of the House of Lords has led to constant calls for reform. The House of Lords Act 1999 removed most hereditary peers, leaving only 92 as a temporary
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