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
the flap of an envelope信封的封盖
I zipped the tent flaps shut.我拉上了帐篷门帘的拉链。
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
With a flap of its wings, the bird was gone.鸟扑打着翅膀飞走了。
the flap of the sails风帆的鼓胀
3.[sing](informal)忧虑；困惑；激动a state of worry, confusion and excitement
She gets in a flap over the slightest thing.极小的事也能令她不安。
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
the flap about the President's business affairs公众对总统公务的批评
5.[c]（飞机的）襟翼a part of the wing of an aircraft, on the rear of the wing, that can be moved up or down to control upward or downward movement
1.[t][i]~ (sth)振（翅）if a birdflaps its wings, or if its wingsflap , they move quickly up and down
The bird flapped its wings and flew away.鸟振翅飞去。
The gulls flew off, wings flapping.海鸥扑打着双翅飞走了。
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
The sails flapped in the breeze.风帆在微风中摆动。
Two large birds flapped(= flew) slowly across the water.两只大鸟振翅缓缓飞过水面。
She walked up and down, flapping her arms to keep warm.她来回走动，挥动着双臂使身体暖和起来。
A gust of wind flapped the tents.一阵风吹动了帐篷。
3.[i](informal)忧虑；激动to behave in an anxious or excited way
There's no need to flap─I've got everything under control.不必担心，一切都已在我控制之中。
He took a breath to clear away the cobwebs of the night as the raven flapped away.
他吸了口气吹走昨夜的蜘蛛网，乌鸦随之扑翅飞开。
The log began to roll, and Otis flapped his feet faster and faster, trying not to fall.
圆木滚了起来，奥蒂斯的脚动得越来越快，好让自己不要掉下来。
The man at the bar flapped his hands behind his head as if swatting away flies.
吧台边喝酒的那个人在他的脑后来回挥动着手，好像在驱赶苍蝇似的。
Had the butterfly not flapped its wings, the trajectory of the system might have been vastly different.
如果蝴蝶没有扇动翅膀，系统运行的轨迹可能会很大不同。
a light flapped over the scene , as if reflected from phosphorescent wings crossing the sky , and a rumble filled the air.
一道闪电划过长空，宛如横空飞过的闪着磷光的翅翼，随即，空中滚过了隆隆的沉雷。
The sails flapped in the wind and the boat went ahead smoothly.
“帆迎风拍打着，小船顺利地向前行驶。”。
It was like a beautiful bird flapped into our drab cage, and made those walls dissolve away.
就像一只美丽的鸟儿，振翅飞离了禁锢它的藩篱，溶化了那些高墙。
The wind flapped in his face and his eyes were flashing.
风拍打着他的脸，他的眼睛闪闪发光。
Holding her mother tightly, Anna watched from the doorway as the angry owl flapped off into the dawn.
看到门口愤怒的猫头鹰拍着翅膀飞向黎明的天幕，安娜紧紧的抱住妈妈。
As the wind rushed through the tree tops the plastic eagle's wings fluttered and flapped. It looked so real.
当风从树间急速吹过，那只塑料鹰翅膀便一张一合，振翅欲飞，看上去像真的一样。
is proper rather xiao regrets wear time of distressed oneself's facial appearance, suddenly and rather flapped china to open his door.
正当宁逍感慨着自己容颜憔悴的时候，突然宁振华打开了他的房门。
It was like some beautiful bird flapped into our drab little cage and made those walls dissolve away.
就像一些美丽的鸟儿扑扇着翅膀来到我们灰色牢笼，让那些墙壁消失得无影无踪。
Mrs. Dulcie stood up and flapped her wings. Again she rose off the floor and landed gently across the stage.
杜尔希太太站起来拍动她的翅膀，她又升离地板了，并且缓缓的降落在舞台的另一端。
It was like a beautiful bird flapped into our drab cage. . . every last man at Shawshank felt free.
如一只美丽的小鸟飞进了这灰色的鸟笼……感到一刻的自由。
And they found that the sound make by wings flapped in terror includes a distinctive sort of whistle.
科学家们发现在危险情况下，这些鸽子的翅膀产生的声音模式具有一种明显的呼啸声。
Then it straightened its feathers with its beak, and flapped its wings a few more times.
接着它用喙理了理羽毛，又拍了几下翅膀。
"Mummy! " they cried, and they flapped nd they danced, and they bounced up and down on their branch.
“妈妈！”他们喊。他们拍着翅膀跳起舞来，他们在树枝上又蹦又跳。
But recently, the communal pool at Mar de Canet was full of giggling children, and bright beach towels flapped from virtually every balcony.
不过最近，公寓的公共游泳池里却满是咯咯嬉笑的小孩，几乎每个公寓的阳台上都飘扬着色彩鲜亮的沙滩浴巾。
When the tortoise flapped his legs to fly, he fell into a bush and had no serious injuries.
当乌龟舞动着四肢想自己飞时，他掉进了树丛中。
"No, no, no, " squeaked Dobby, shaking his head so hard his ears flapped.
“不，不，”多比尖声说，用力摇着头，把耳朵甩得啪哒啪哒直响，
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