例句：

　　People are still terribly apprehensive about the future.

　　人們對于將來仍然非常擔(dān)心。

　　She was apprehensive about her son's safety.

　　她很擔(dān)心兒子的安全。

　　The book was written in a style appropriate to the age of the children.

　　這本書的文體適合兒童閱讀。

　　Jeans are not appropriate for a formal party.

　　正式聚會上穿牛仔褲不合適。

　　he has access to all manner of arcane knowledge that even I do not.

　　她知道各種神秘的知識，很多我都沒聽說過。