flap

平整的纸等flat piece of paper, etc.

1.[c]（附于某物的）片状下垂物，封盖，口盖，袋盖a flat piece of paper, cloth, metal, etc. that is attached to sth along one side and that hangs down or covers an opening

动作movement

2.[c][ususing]（上下或左右）拍打，振（翅），拍击a quick often noisy movement of sth up and down or from side to side

忧虑；激动worry/excitement

3.[sing](informal)忧虑；困惑；激动a state of worry, confusion and excitement

公众不同意public disagreement

4.[sing]公众不同意；群众愤怒；大众批评public disagreement, anger or criticism caused by sth a public figure has said or done

快速动作move quickly

1.[t][i]~ (sth)振（翅）if a birdflaps its wings, or if its wingsflap , they move quickly up and down

2.[i][t]（使上下或左右）拍打，拍击，摆动to move or to make sth move up and down or from side to side, often making a noise

忧虑；激动be worried/excited

3.[i](informal)忧虑；激动to behave in an anxious or excited way

1.拍打,拍击;拍动(翅膀),扑动

2.拍打(蚊,蝇等);使(帆,帘子等)拍动

3.合上,叠起,扔弃

4.把(帽边等)拉下

5.拍动,摆动,飘动

6.垂下

7.乱吹,讲空话

8.拍翅飞行

9.〈俚〉激动起来,被搞糊涂

1.【机】(整流罩,散热器等的)风门片,鱼鳞片,瓣

2.【医】(手术后遗下或移植用的)瓣

3.(鱼鳃)盖;(狗等)下垂的长耳;(菌类)张开的伞

4.垂下物;前襟的翻褶;袋口盖;(帽)边;信封口盖

5.(折叠式桌子的)折板,铰链板;(活板门的)活板;【航】襟翼,阻力板;【纸】挡水板

6.〈口〉兴奋,恐慌

7.拍动

8.拍击;鼓翼

9.〈口〉空袭(警报)

1.if a bird’s wings flap, or if the bird flaps them, they move quickly up and down; if your arms, hands, etc. flap, or if you flap them, they move quickly up and down; to move noisily up and down or from side to side, especially in the wind

2.to be very worried, nervous, or excited about something

1.a thin flat piece of something that is fixed to something else along one edge

2.a situation in which people are confused, excited, or angry

3.a single fast movement of something in the air, for example a bird’s wings; the sound of fast movement through air

4.a part of the wing of an airplane that moves up and down to help to control the airplane