weak/wiːk/
adj.1. 不结实的;衰弱的a weak building一座不牢固的建筑
a weak heart衰弱的心脏
2. 软弱的3. 虚弱的Her legs felt weak.她的两腿发软。
She was weak after her illness.她病后很虚弱。
4. 稀的;淡薄的weak soup稀汤
5. (动词)按规则变化的(形式)Stepped is a weak form; swam and swum are strong.Stepped 是按规则变化的形式,swam 和 swum 是不按规则变化的形式。