___(disappoint)at the results,she didn't say a word.the answer is "Disappointed"为什么不是disapointing怎么解释（请从语法角度讲解）
热心网友
be disappointed at sth对．．．失望
热心网友
被动语态，
热心网友
"Disappointed at the results"是倒装句原句也可写成She was disappointed at the results,and she didn't say a word.-ed 用于形容人 -ing用于形容物 例如:interestShe was interested in the interesting book.