trill a note 奏出颤音
bird's trill 鸟鸣
trill with excitement 激动得声音颤抖
A: Did you hear the birds trilling in the garden?
A：你听到花园里鸟儿在鸣叫吗？
B: Yes, their trill is so beautiful and soothing.
B：是的，它们的鸣叫声非常优美动听。
1) 鸟类或乐器发出的颤动声或颤音
2) 因情绪波动而颤抖的声音
3) (音乐术语) 颤音
1. 颤动，鸣叫
2. 颤音
verb
1. To make a quavering, rapidly repeated sound.
Synonym: warble, quiver
noun
1. A quavering or vibratory sound.