小测验：选择正确的单词
whir [hwə:]
基本释义
- n. 呼呼声,飕飕声
vi. 作呼呼声,发飕飕声
vt. 使呼呼响
英英解释
- sound of something in rapid motion
[同]
birr, whir, whirr, whirring
[例]
- whir of a bird's wings
- the whir of the propellers
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- make a soft swishing sound
[同]
birr, purr, whir, whirr, whiz, whizz
[例]
- the motor whirred
- the car engine purred
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