乐音

例句：

1. 1. The melody of the song is so beautiful that it can make you forget about your troubles.
   这首歌的旋律如此美妙，以至于它能让你忘记你的烦恼。
2. 2. She hummed a tune to herself while cooking dinner.
   她在做饭时哼唱着曲子。
3. 3. The harmony between the two instruments perfectly complemented each other's sound.
   两种乐器之间的和谐完美地补充了彼此的声音。