As you know, in English you generally make a word plural by adding an ‘s’ at the end. There seems to be some confusion, though, about how to make plurals of terms made up of more than one word. For example, do you say bicycles shops or bicycle shops? Do you say power of attorneys or powers of attorney?

　　众所周知，在英语中要把一个名词变成复数，只要在这个词的后面加上“s”就行了。不过，当一个名词变成了由几个名词组成的词组时，就让人摸不着头脑了。举个例子，如果你要表示自行车商店的复数形式，你是用“bicycles shop”还是“bicycle shops”?在表示授权书的复数时，你是说“power of attorneys”还是“powers of attorney”?

　　The answers are bicycle shops and powers of attorney.

　　正确的说法是“bicycle shops”和“powers of attorney”。

　　The rule is that you pluralise the “head” of the term.

　　名词词组复数变化的规则就是：变“重点词”。

　　The term bicycle shop is typical of most noun groups. The “head” is the last word in the group. The previous word or words act as an adjective. So the last word in the group is pluralised. Here are some more examples:

　　“自行车商店”这个名词词组是一个很典型的例子。在这个词组中，重点词是最后一个词，即商店(shop);前面的词或者词组只是起到了一个形容词的修饰作用而已。因此，在这个词组中，最后一个词变成了复数形式。更多类似的例子：

　　Bank account => Bank accounts

　　银行账户

　　Company car => Company cars

　　公司用车

　　Price limit => Price limits

　　价格限制

　　Termination notice => Termination notices

　　终止通知

　　Service charge payment => Service charge payments

　　服务费收费

　　Employee share option scheme => Employee share option schemes

　　雇员股份认购权计划

　　However, a term like power of attorney acts rather differently. Power is the “head” and of attorney is an adjectival phrase which describes the “head”. Here are some other examples of terms that behave in the same way:

　　然而，像授权书这样的词组就又是另外一番解释了。在这个词组中，重点词是权利(power)，律师(attorney)一词只是用来充当形容词的修饰成分。

　　Article of association => Articles of association

　　更多类似的例子：

　　Code of conduct => Codes of conduct

　　公司章程

　　Conflict of interest => Conflicts of interest

　　行为守则

　　Course of action => Courses of action

　　利益冲突

　　Notary public => Notaries public

　　行动步骤

　　Statement of claim => Statements of claim

　　公证人

　　起诉书

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（实习编辑：高奕飞）