例句：
People are still terribly apprehensive about the future.
人們對于將來仍然非常擔心。
She was apprehensive about her son's safety.
她很擔心兒子的安全。
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。