1. tune up
   v.调音,定弦,调整,调节,<口>开始演奏
   

1. The orchestra was tuning up before the concert.
   管弦乐队在音乐会开始前在调音。
2. The Baby was tuning up for another spell of weeping.
   婴儿正在开始另一阵哭泣。
3. The station wagon smoked even after the tune-up.
   车站的机车即使在经过调试以后依然不停地冒烟
4. The baby was tuning up for another spell of weeping.
   婴儿正在开始另一阵哭号。
5. A few soapbox orators are tuning up near the bandstand.
   有几个街头演说者在室外音乐台边上试讲。

　2个名词解释