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。
The flapping wings of the hovering robotic insects (known as ornithopters) are very thin, lightweight and yet strong.
机器飞虫（被称为扑翼机）扑打的翅翼非常纤薄、轻质，却很牢固。
She rolls her eyes to the back of her head and mimics electricity running through her, her LIPS FLAPPING like loose pieces of meat.
她仰着头翻白着眼睛，模仿着电流通过自己的样子，嘴唇就像两片酥松的肉片那样震颤着。
He towered over them in a velvet-collared coat, his big-brimmed soft gray hat pulled low on his head and flapping in the icy wind.
他的个子高出他们许多，穿了一件天鹅绒领子的大衣，头上那顶灰色的宽沿软帽拉得很低，被凛冽的寒风吹得呼扇着。
He saw it first when it jumped in the air, true gold in the last of the sun and bending and flapping wildly in the air.
他第一次看见它是在它跃出水面的当儿，在最后一线阳光中确实象金子一般，在空中弯起身子，疯狂地扑打着。
Both were in high heels and smart suits and were struggling with a flip chart, its pages flapping in the wind.
两人都穿着高跟鞋与漂亮的套装，费劲地收拾着一个活动挂图，纸页在风中不停地摆动。
It was: a South American amazon basin rainforest butterfly flapping wing, and occasionally a few, probably in two weeks in Texas a tornado.
其大意为：一只南美洲亚马孙河流域热带雨林中的蝴蝶，偶尔扇动几下翅膀，可能在两周后在美国德克萨斯引起一场龙卷风。
You want to jump in the car and sail down the highway with all the windows down and your hair flapping in the wind.
于是你想要跳进车中，沿着高速公路行驶，车窗大敞，头发随风飘荡。
It would be like him to trot after me, his navy blazer flapping, just to eke the truth out of me.
好像他小跑跟在我身后，他那海军蓝的上衣随风飘动，只是为了逼我把事实说出来。
Yet she had evidently nothing of the fluttering, flapping quality of a morsel of bunting in the wind.
不过，在她身上，找不到一点迎风招展、随风飘舞的旗子的性质。
And she received two anonymous notes from neighbors saying they did not want to see her underwear flapping about.
而她也接到了相邻方的两条匿名字条，称他们不想看到她的内裤飘来荡去。
robot features innovative flapping wings that allow it to fly and glide through the air like a real bird .
费斯托公司发明的智能鸟的翅膀可以上下摆动，在空中像真鸟一样自由飞行甚至滑翔。
Moving his arms, he was soon flapping wings and changed into a canary, dressed in yellow as he was.
只见小伙子的两臂动了起来，上下拍动变成了翅膀，而小伙子变成了一只金丝雀。
A gusty wind was blowing, and it set the bottom of her robe snapping and flapping at her legs.
一阵大风吹过，掀起袍角在腿上猛烈地拍打。
Him, a military uniform, his face smiling, a red scarf flapping in the wind.
他，一身军装、一脸微笑，一条红领巾随风飘扬。
The Dalai Lama, with his long traditional red robe flapping in the wind, received a standing ovation as took the stage at the Crocoseum.
达赖喇嘛穿着的传统的红色长袍在风中飘舞，他的演讲获得了长时间的起立鼓掌。
These boys sloped up to the stage in their tatty blazers, with long hair flapping while their cultured parents clapped indulgently.
这些男孩穿着破旧的运动夹克懒散地走上台，披头散发，与此同时，他们有教养的父母则溺爱般的鼓着掌。
It landed on Jon Snow's chest with a thump and a scrabbling of claws. "SNOW! " it screamed into his face, flapping its wings.
它噗通一声落在琼恩雪诺胸口上，两爪乱扒一通才立住。“雪诺！”它扑着翅膀直冲他脸上嘶叫。
streaming or flapping or spreading wide as if in a current of air .
好象在空气中流动、飘动或广泛散布的。
This mode, in which MFI can modulate the flapping parameters to adjust the force and torque, offers a means of control of the MFI.
设计了一种当飞行器处于悬停状态时，翼的扑动模式，使得飞行器可以通过改变扑动参数的大小来调节扑动力。
The idea state can comfort us just as the swans flapping feathers gently on this cold winter morning.
那种境界就如寒冷的冬天早晨天鹅羽毛轻拍的声音一样给人以慰藉。
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