liquid whistle

例句：

1. 1. The liquidwhistle is a traditional instrument used in folk music performances.
   液体哨子是一种传统乐器，用于民间音乐表演。
2. 2. The children were playing with their liquid whistles during recess.
   孩子们在课间休息时用他们的液体哨子玩耍。
3. 3. The liquid whistle was used to create a soothing sound that helped calm the audience.
   液体哨子被用来创造一种舒缓的声音，帮助安抚观众。