whistle/'wɪsl/

n.

➊ a small object that makes a high sound when you blow into it

➋ the sound made by a whistle or similar sound made by your lips

n. [C]

➊ 哨子：The referee blew a whistle to start the race. 裁判吹哨子开始赛跑。

➋ 哨子声；口哨声：The player said he had not heard the whistle. 这位运动员说他没有听到哨子声。

◇gave a low whistle轻轻地吹口哨

音组-stle/-sl/

castle; whistle; wrestle