| 单词 | step sth↔up |
| 释义 | ● ˌstep sth↔ˈup to increase the amount , speed , etc . of sth 增加，提高（数量、速度等）◆ He has stepped up his training to prepare for the race . 他为准备那场赛跑加强了训练。◆ If he wants to win this election , he really needs to step it up (= put in more effort ). 如果他想赢得这次选举，必须加倍努力。See also step |
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