[countable] (usually Act) a law that has been made by a parliament（议会制订的）法案，法令◆Many companies could be in breach of the Data Protection Act.许多公司都可能违反数据保护法。  ➡  regulation ⨁to amend / pass / repeal an act修改／通过／废除法案 (Law 法律) something that sb does that is harmful to sb else（对他人有伤害的）行为◆The auditors had been warned of possible illegal acts within the company.已经有人提醒审计员，公司内部可能存在非法行为。⨁to commit a criminal/an illegal act犯罪；从事非法活动 ●be/get ˌin on the ˈact (especially BrE) (NAmE usually get ˌinto the ˈact) (informal) to be/become involved in an activity that sb else has started, especially to get some benefit for yourself参与；插一手●get your ˈact together (informal) to behave in a more effective or responsible way组织起来◆The EU needs to get its act together to enforce the new law.欧盟必须组织起来实施这项新法律。  ➡  idiom at clean verb