| 单词 | tune-up |
| 释义 | tune-up 1 ENTRIES FOUND: plural tune-ups plural tune-ups Learner's definition of TUNE-UP [count] chiefly US 1 : a process in which small changes are made to something (such as an engine) in order to make it work better（发动机等的）调整，调谐
2 : an event or activity that helps you practice or prepare for a more important event or activity热身；准备
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