to improve behavior or performance; to become more responsible
改善行为或表现；变得更加负责任 (gǎi shàn xíng wéi huò biǎo xiàn; biàn dé gèng jiā fù zérèn)
"The factory had to clean up its act to avoid heavy fines."
"工厂必须改善行为以避免重罚。" (Gōngchǎng bìxū gǎishàn xíngwéi yǐ bìmiǎn zhòng fá.)
to be in direct competition or disagreement
a sudden and powerful beginning; often used metaphorically
to take back what you said
surprised or shocked by something unexpected
to keep a promise or commitment
to gather belongings and prepare to leave
