| 单词 | be up to no good | 
| 释义 | be up to no good be up to no good INFORMAL ► F0 to be behaving in a dishonest or bad way: » He certainly looked as if he was up to no good.Thesaurus+: ↑DishonestThesaurus+: ↑Bad and wrong behaviour , ↑Disobedient , ↑Obeying and breaking the law , ↑Obedient and compliant  | 
	
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