Serve as something是什么意思?

母语人士的回答
Rebecca
Serve as something意味着适合用于特定目的。它也用于指代为组织或国家履行职责。示例: The table cloth serves as a protective surface from spilt drinks on the table. (桌布还可以在饮料洒落时保护桌子表面。) 示例: The sofa also serves as a bed when we have people over. (沙发在邀请人时也可以用作床。) => 表示附加用途 示例: He served in the army for two years. (他在军队服役了两年。)