口哨
whistle
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📖 Additional Information
English Phonetic:
'hwisl
Detailed Definition:
n. the sound made by something moving rapidly or by steam coming out of a small aperture\nn. the act of signalling (e.g., summoning) by whistling or blowing a whistle\nn. a small wind instrument that produces a whistling sound by blowing into it\nn. acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound