step up片語動詞KK [stɛp ʌp] /stɛp ʌp/發音片語動詞1挺身而出、主動承擔、展現擔當口語When the team needed a leader, she stepped up without hesitation.球隊需要領袖時,她毫不猶豫地挺身而出。2加強、提高、加快可拆開The factory stepped up production to meet holiday demand.工廠加快生產,以應付假期的需求。3走上前、走近He stepped up to the microphone and began to speak.他走到麥克風前,開始講話。4升級、換成更好的After two years, she stepped up to a more powerful laptop.兩年後,她換成了一台性能更強的筆記型電腦。名詞1增加、提升、升級The new contract is a clear step-up in pay and benefits.新合約在薪資和福利上都有明顯提升。