tuned post

例句：

1. 1.The engineer tuned the instrument carefully before playing.
   工程师在演奏前仔细调音。
2. 2.The tune of the song was so beautiful that it made me forget my worries.
   这首歌的旋律如此美妙，以至于让我忘记了所有的烦恼。
3. 3.He spent hours tuning his guitar to perfection.
   他花了很多时间把吉他调得完美无缺。