| 单词 | brush up on sth |
| 释义 | ● ˌbrush sth↔ˈup ● ˌbrush ˈup on sth to quickly improve a skill , especially when you have not used it for a time 快速提高；重温（生疏了的技术等）◆ I must brush up on my Spanish before I go to Seville . 我去塞维利亚之前一定得好好温习我的西班牙语。See also brush |
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