1
serve as a legionnaire
serve as 后接表示身份的名词，指担任军团成员这一角色。
He served as a legionnaire in Algeria.
他在阿尔及利亚作为一名外籍军团士兵服役。
美国退伍军人协会会员
先理解核心含义，再看它在真实句子里的用法。
美国退伍军人协会会员
a member of the American Legion
He served as a legionnaire in Algeria.
他在阿尔及利亚作为一名外籍军团士兵服役。
既非所加入军队所属国公民,也非其殖民或帝国臣民的人。
A person who is neither a citizen nor colonial/imperial subject of the state whose military they join.
军团成员,尤指法国外籍军团士兵。
A member of a legion, especially the French Foreign Legion.
A legionnaire marched through the desert under the hot sun.
一名军团士兵在烈日下行军穿过沙漠。
She wrote a novel about a legionnaire who served in Africa.
她写了一本关于一名在非洲服役的军团士兵的小说。
The officer passed the legionnaire a bottle of water.
军官递给那名军团士兵一瓶水。
serve as 后接表示身份的名词，指担任军团成员这一角色。
He served as a legionnaire in Algeria.
他在阿尔及利亚作为一名外籍军团士兵服役。
in 后接具体军团名称，常指 the French Foreign Legion。
He was a legionnaire in the French Foreign Legion.
他是法国外籍军团的一名士兵。
Not this
He joined the French Foreign Legion and became a legion.
Use this
He joined the French Foreign Legion and became a legionnaire.
中文‘军团’既可以指军队单位也可以指人，但英语中‘legion’是集体名词，指整个军团，不能指个体。表示‘军团士兵’要用可数名词‘legionnaire’。这个错误源于将中文‘军团’直译为英文。
Not this
The legionnaire are brave.
Use this
The legionnaires are brave.
这里主语指多个士兵，而‘legionnaire’是可数名词，复数形式为‘legionnaires’，谓语动词‘are’应与复数主语一致。中文名词没有复数变化，因此学习者容易漏掉词尾-s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
美国退伍军人协会会员
My grandfather is an American Legionnaire and attends the annual convention.
我祖父是美国退伍军人协会会员，参加年度大会。
（法国）外籍军团士兵
The Foreign Legionnaire marched across the desert in the heat.
那名外籍军团士兵顶着酷热行军穿过沙漠。
作为军团士兵服役
He served as a legionnaire for five years before moving to Paris.
他在搬到巴黎前作为军团士兵服役了五年。
前军团士兵
The former legionnaire wrote a memoir about his time in the legion.
这位前军团士兵写了一本关于他在军团经历的回忆录。
Use legionnaire naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 legionnaire 拆成 legion（军团）+naire，想象一名军团士兵驻守营地；同词也指美国退伍军人协会会员。
语域：neutral 常见场景：历史或军事书面语、美国退伍军人协会相关场合 该词整体语气比较中性、正式，多用于历史或军事书面语中；在口语日常对话中较少单独使用。它既可指美国退伍军人协会会员，也可指军团（尤其是法国外籍军团）的士兵，具体含义通常需结合上下文判断。
legionnaires
Dictionary facts from ECDICT, WIKTIONARY.