warble

1.cattle to be treated for warble fly.

要治皮蝇虫害的牛。

2.he warbled in an implausible soprano.

他用柔和的颤唱出难以置信的女高音。

3.they warbled incessantly, their throat feathers ruffled.

它们不停地啭鸣，喉部的羽毛竖了起来。

4.The brook warbled over its rocky bed.

小溪潺潺流过多石的河床。