[intransitive] to do sth for a particular purpose or to deal with a particular situation（为某目的）做◆We have acted in the shareholders' best interests.我们为了股东的最佳利益行事。◆The management has realized its mistake and has acted quickly to avoid disaster.管理层已认识到错误，并且很快采取措施避免灾难。◆ The broker acted honestly and in good faith (= believing he was doing the right thing).经纪人做事诚实，令人信服。 ●ˈact for sb/sth ●ˌact on beˈhalf of sb/sthto deal with sb's/sth's affairs for them代理（某人或某事）◆accountants acting for a number of trusts代理许多信托财产的会计师 (Law 法律) to represent sb/sth in a court代表（某人或某事出庭）●ˈact as sthto perform a particular function; to do a particular job, especially one that requires special skills or is very responsible担任◆Ms Nelson will continue to act as a consultant for six other companies.内尔森女士将继续担任另外六家公司的顾问。●ˈact on sth (also ˈact upon sth, especially formal ) to do sth as a result of advice, information, instructions, etc. that you have received根据（建议、信息、指示等）行事◆The board failed to act on the takeover offer.董事会未根据这收购要约采取行动。