retained by.........? 还是retained by.....was...? 或者是要加个名词在retained by才是对的呢?
retained by... 仅仅是一个过去分词短语。组成句子的话,还需要很多成分。例如:
1. The money was retained by him. (构成被动语态)那些钱由他保留。
2. The money retained by him was lost. (作 the money 的定语) 他保留的那些钱丢了。
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