tune up

n. 开始奏乐(开始, 调准)

例句与用法：

The orchestra were tuning up as we entered the hall.

我们进入大厅时，管弦乐队正在调音。

Before he began to play, Harry tuned up his banjo.

开始演奏前，哈利先行调好他的五弦琴。

词形变化：

动词过去式: tuned | 动词过去分词: tuned | 动词现在分词: tuning | 动词第三人称单数: tunes |