1.flap的基本意思是使某事物上下或左右地移动,也可指人以软而平之物轻轻拍打某物,还可指旗帜等飘动、摆动,还常用于鸟类振翅飞行。引申可表示“讲蠢话”“乱吹”,俚语里还可表示“激动起来”“被搞糊涂”。
2.flap可用作及物动词,也可用作不及物动词,用作及物动词时,跟简单宾语。
3.flap的过去式和过去分词是flapped。

flap about〔around〕 (v.+adv.)
▲flap about〔around〕
1.摆动,飘动 move loosely or aimlessly without direction
The flag was flapping about in the light wind.那面旗子在微风中飘动。
2.〈非正〉无必要地担忧 worry needlessly
〔说明〕 flap about〔around〕作此解时常用于进行体。
Do stop flapping about, we'll get the job done in time.大可不必发怒,我们会按时完成这项工作的。

flap away (v.+adv.)
(使)移动 (cause to) move up and down or from side to side
▲flap away
The goose flapped heavily away.那只鹅笨重地拍翅跑开了。
▲flap sth ⇔ away
He flapped the flies away with a fan.他用扇子把苍蝇拍走。

用作不及物动词
▲S+～(+A)
The curtains were flapping at the open window.窗帘在敞开的窗前摆动。
The eagle flapped across the sky.鹰振翅掠过天空。
The sails were flapping against the mast.帆拍打着桅杆。
用作及物动词
▲S+～+n./pron.
The bird flapped its wings and flew away.那只鸟拍了拍翅膀飞走了。
The bird was flapping its wings.那只鸟拍动着翅膀。
She flapped a newspaper at the insect.她用报纸拍虫子。
The wind flapped the sails.风吹帆动。
其他
The heron came flapping over the water.苍鹭振翅从水面上飞来。

He heard flaps of the bird.他听到了鸟振翅的声音。
For fear of making errors he was in a flap.由于担心犯错,他惴惴不安。

［同义词］ n. flapping, flutter, fly