A flat piece attached on one side that hangs down or covers an opening
The tent flap kept the rain out.
帐篷的帘子挡住了雨水。
A quick up and down or side to side movement, often with noise
The bird took off with a flap of its wings.
鸟儿拍打翅膀飞了起来。
A state of worry and excitement
She was in a flap about the party.
她对派对感到焦虑不安。
Public anger or criticism about something said or done
There was a flap over the new policy.
新政策引发了公众的愤怒。
A movable part on an aircraft wing used for control
The plane's flap helps it land safely.
飞机的襟翼帮助它安全着陆。
A speech sound made by quickly touching the tongue to the roof of the mouth
The 'r' sound in some languages is a flap.
某些语言中的'r'音是闪音。
To move wings up and down quickly
Birds flap their wings to fly.
鸟儿拍打翅膀来飞行。
To move up and down or side to side, often making noise
The flag will flap in the wind.
旗帜会在风中飘扬。
To behave in an anxious or excited way
Don't flap, we have plenty of time.
别慌张,我们时间很充裕。
To produce a flapping sound or movement
He can flap his tongue to make the sound.
他能颤动舌头发出这个声音。