| 词汇 | tune up |
| 词根词缀 | 词源： "bring to a state of effectiveness," 1718, in ref. to musical instruments, from tune (v.) + up. Attested from 1901 in ref. to engines. Tune-up (n.) "event that serves as practice for a later one" is a U.S. sporting coinage first attested 1934. 词根记忆： v. 调音,定弦,调整,调节,<口>开始演奏The orchestra is tuning up and the concert is about to begin.乐队正在调音,音乐会马上就开始. |
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