sad

释义

a. 悲哀的,伤心的,不能令人满意的

例句

1. It made me sad to hear you have to go away.
   听到你非走不可，我觉得很伤心。
2. Sad to say, she hasn't given us permission to do it.
   不幸的是，她没准许我们做这件事。