sad的副词用英语怎么写

　　例句：

　　We were all sad at her going.

　　我们对她的离去都很难过。

　　I overreact to anything sad.

　　我对任何悲伤的事情都反应过激。

　　She looked sad and tired.

　　她看上去又伤心又疲惫。