no good 〈口〉 1. 没用 There is no good(in) saying anything. 说什么都没有用。 It's no good worrying about that now. 现在为那担忧已没用了。 2. 不擅长 I'm no good with tax returns. 我不善于填写税单。 I'd be no good as a doctor. 我不是当医生的料。 3. 勾当 be up to (或 after) no good(想)搞鬼 Any one loitering at midnight in the street must be up to no good. 凡是半夜在街上闲逛的人肯定都没想干好事。