The contract will come into effect upon signature.此合同将在签字后生效.When does the new timetable come into effect?新的时刻表什么时候实行?The new law has come into effect.新法律已经实施....

实行，实施，行之有效...

come into effect的音标：come into effect的英式发音音标为：[kʌm 'ɪntuː i'fekt]come into effect的美式发音音标为：[kʌm 'ɪntu ɪ'fɛkt]...