function as的用法和樣例：
例句
- A pragmatic theory that ideas are instruments that function as guides of action, their validity being determined by the success of the action.
工具主義一種實用主義理論，認為思想是指導行為的工具，行為的成功證明其手段合理 - The sofa can also function as a bed.
這沙發也可以當床。 - Some English adverbs function as adjectives.
英語中有些副詞可作形容詞用。 - Functioning as a receiver; receptive.
接受的起收受容納作用的; 願意接受的
