noun [具体名词]鸟啭鸣；颤声
the act or an instance of warbling
颤音
verb [vt. 及物动词]鸟鸣；用柔和的颤声唱
If someone warbles, they sing in a high-pitched, rather unsteady voice.
用颤音高唱
verb [vi. 不及物动词]鸟鸣；用柔和的颤声唱
...singers warbling "Over the Rainbow." …
歌手们颤声高唱着《彩虹那一端》。
单词造句: