在英语中,连词 + done 是什么 意思 举几个 例子.. 顺便说下怎么用...答:当过去分词或过去分词短语用作状语时,有时根据语义的需要可以在其前加上相应的连词,如when, while, as, after, before, till, until, if, unless, although, though, even if, even though, once等。如:If accepted for this post, you will be informed next week. (=If you are accepted...