step up片语动词KK [stɛp ʌp] /stɛp ʌp/发音片语动词1挺身而出、主动承担、展现担当口语When the team needed a leader, she stepped up without hesitation.球队需要领袖时,她毫不犹豫地挺身而出。2加强、提高、加快可拆开The factory stepped up production to meet holiday demand.工厂加快生产,以应付假期的需求。3走上前、走近He stepped up to the microphone and began to speak.他走到麦克风前,开始讲话。4升级、换成更好的After two years, she stepped up to a more powerful laptop.两年后,她换成了一台性能更强的笔记型电脑。名词1增加、提升、升级The new contract is a clear step-up in pay and benefits.新合约在薪资和福利上都有明显提升。用这个字练口说→