warble
🇬🇧/ˈwɔːbl/ 🇺🇸/ˈwɔːrbl/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》。
