请问句子中的of his employment 是什么成分?为什么不是his employment of the terms?

题目

请问句子中的of his employment 是什么成分?为什么不是his employment of the terms?
They wanted to determine if he complied with the terms of his employment and his obligations as an American.
他们想要确定,他是否履行了受雇条件,是否履行了作为美国公民所应尽的职责.

答案

the terms of his employment他的受雇佣条件,中心词是terms.
of 是介词,介宾短语一般是作定语或状语的.介词后面的名词只是介词的宾语,一般是不充当中心词的.
不明白的再问哟,请及时采纳,多谢!