So need to adjust springs of the tremolo…

所以我需要调整琴桥的弹簧…

We'll hear the tremolo and then the trumpet.

我们会先听到碎弓，然后是小号。

The most popular approach is the staccato tremolo.

现在最流行的方法是断音练习。

So many holes? Is it a tremolo? Sorry I don't kown.

这么多孔？复音口琴？抱歉啊。我真不知道。

In fact, boring rainy days also ask the tremolo of the strings.

原来，沉闷的雨天也有颤音的琴弦抚出。