be good at sth. 擅长做某事 be absent from 缺席 be annoyed at 对……恼怒 be in charge of 负责 be available to sb. 可被某人利用或得到 at one’s expense 由某人支付费用 be conc...
1.be good for 对...有益 Doing morning exercises is good for your health. 做早操对你们的建康有益。 2.be good at 擅长于... Li Ping is good at basketball. 李平擅长于篮球。 = Li Ping is good at playing basketball. 李平擅长于打篮球。 be good ...
一。 be good at be good at 表示“擅长于某一学科知识或技能”,也可表示“在……方面做得好。” be good at 后面接名词、代词、动词的 -ing 形式,相当于 do well in .如: Mike is good at swimming. 迈克擅长于游泳。 I am good at English. 我擅长英语。
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