frustrateda.灰心的,沮丧的(修饰人)
e.g.Ifeltfrustratedatthattime.那时我觉得很沮丧.
frustratinga.令人灰心的,令人沮丧的.(修饰物,事件)
e.g.WatchingmoviestolearnEnglishisfrustratingbecausethepeoplespeaktooquickly.
通过看电影来学英语是让人灰心的,因为剧中人物说话太快了.
类似的还有:interesting令人感兴趣的disappointing令人失望的;interested感兴趣的disappointed失望的
自测:
Allofuswere_____atthe____news.
A.frustrated,frustrated
B.frustrated,frustrating
C.frustrating,frustrated
D.frustrating,frustrating
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答:B