ADJ
代替的;代用的;代理的
You use surrogate to describe a person or thing that is given a particular role because the person or thing that should have the role is not available.
例句
Martin had become Howard Cosell's surrogate son...
马丁代为当起了霍华德·科塞尔的儿子。
John Brown was the latest in a series of surrogate father figures in Victoria's life...
在一系列曾在女王维多利亚的一生中扮演过代理父亲角色的人物中，约翰·布朗是最近的一位。