flapping

1. V-ERG (使)飘动;摆动;抖搂
   If something such as a piece of cloth or paper flaps or if you flap it, it moves quickly up and down or from side to side.
   1. Grey sheets flapped on the clothes line...
      灰色的床单在晾衣绳上飘来摆去的。
   2. They would flap bath towels from their balconies as they chatted.
      他们聊天时会在阳台上抖搂浴巾。
2. V-ERG 振(翅);挥(翅);(翅膀)拍打，抖动
   If a bird or insect flaps its wings or if its wings flap, the wings move quickly up and down.
   1. The bird flapped its wings furiously...
      鸟儿使劲地扑打着翅膀。
   2. A pigeon emerges, wings flapping noisily, from the tower.
      一只鸽子从塔里钻出来，扑扑地拍打着翅膀。
3. VERB 挥动，舞动(手臂)
   If you flap your arms, you move them quickly up and down as if they were the wings of a bird.
   1. ...a kid running and flapping her arms.
      边跑边挥舞着手臂的小孩子
4. N-COUNT (布、皮等)扁平下垂物,垂下的部分
   A flap of cloth or skin, for example, is a flat piece of it that can move freely up and down or from side to side because it is held or attached by only one edge.
   1. He drew back the tent flap and strode out into the blizzard.
      他拉开帐篷的门帘，大步走进暴风雪中。
   2. ...a loose flap of skin.
      耷拉着快要掉下的一块皮
5. N-COUNT (飞机的)襟翼，副翼，阻力板
   A flap on the wing of an aircraft is an area along the edge of the wing that can be raised or lowered to control the movement of the aircraft.
   1. ...the sudden slowing as the flaps were lowered.
      襟翼放下时的突然减速
6. N-COUNT (鸟翼、布条、纸片的)拍打声，拍动，拍打
   A flap is a sudden noise or movement made by a bird's wing or by a piece of paper or cloth when it flaps.
   1. Nothing to be heard but the soft flap of a silk banner.
      万籁俱寂，只有一面绸制旗子轻轻飘动的响声。
7. N-SING 激动;焦虑;惊慌
   Someone who is in a flap is in a state of great excitement, worry, or panic.
   1. Why did people get in a flap over nuclear energy?...
      为什么人们对核能惶恐不安呢？
   2. Wherever he goes there's always a flap.
      无论他到哪里，都会引起一阵骚动。

1. A pigeon emerges, wings flapping noisily, from the tower.
   一只鸽子从塔里钻出来，扑扑地拍打着翅膀。
2. He tried to tuck his flapping shirt inside his trousers
   他设法把飘起的衬衫塞到裤子里。
3. The eagle can soar without flapping their wings.
   老鹰无需振翼就能翱翔。
4. Coloured flags were flapping in the wind.
   彩旗在风中飘荡。
5. 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。
6. The sails were flapping against the mast.
   帆拍打着桅杆。
7. The flag was flapping about in the light wind.
   那面旗子在微风中飘动。
8. The curtains were flapping at the open window.
   窗帘在敞开的窗前摆动。
9. The red flags are flapping in the wind.
   风卷红旗呼啦呼啦地响。
10. The bird was flapping its wings.
    那只鸟拍动着翅膀。
11. The microphone monitored the flapping and fed this information to a controller.
    麦克风监视着拍打情况并把信息反馈到控制器那里。
12. Three high frequency flapping control algorithms of SPC series bionic robofish was chiefly introduced and its limitations analysed.
    着重介绍了SPC系列机器鱼采用的三种高频拍动控制算法，分析了每种控制方法的局限性。
13. The curtains were flapping about in the breeze.
    帷帘在微风中摆。
14. As micro flapping flight is investigated further, its control is paid more attention to.
    随着微扑翼飞行器研究的不断深入，对其控制问题研究已引起了人们的重视。
15. The effects of flapping frequency, wind velocity, angle of attack, plane shape of wing and cambered aerofoil are investigated.
    试验中进行了扑动频率、风速、迎角、机翼平面形状、翼型弯度对机翼气动特性影响的研究。
16. They were flapping their bat-like fins before dropping back into the water with a terrific splash.
    它们拍打着蝙蝠般的鳍，然后随着令人恐惧的溅水声掉进了水中。
17. He walked away from them down the corridor, his white coat flapping.
    他从他们走开沿着走廊下去了，他的白色外套轻轻扇动着。
18. Is every bird flapping its wings at the exact same frequency?
    每只鸟会以同样的频率扇动翅膀吗？
19. It would rush over the land or water noisily flapping its great wings.
    它扇动着大翅膀，发出吵闹声，奔到陆地上又冲进水里。
20. They used the wings to make flapping leaps after insects.
    它们借助于翅膀扇动进行跳跃，追逐昆虫。
21. The bird's wings were flapping.
    这只小鸟正在拍打翅膀。
22. Todd Reichert's ornithopter is an engineless plane that stays aloft by flapping its wings like a bird.
    托德·理查特的扑翼飞机没有发动机，而是靠机翼像鸟的翅膀一样拍打保持飞行。
23. Flapping and rotary gap have been investigated with the help of transonic unsteady aerodynamic forces.
    使用跨音速非定常空气动力，对扑动间隙和旋转间隙进行研究。
24. We could be that butterfly flapping its wings, don't you think?
    我们或许就可以成为那只扇动翅膀大蝴蝶，你觉得呢？
25. It swims by flapping its ear-like fins like the cartoon elephant.
    就像卡通里的大象一样，它靠拍打它的像耳朵般的鳍来游泳。
26. There's no use flapping about it now.
    关于这件事现在讲空话是没有用了。
27. Then I hear a flapping sound; it's near, but it's soft, like a lullaby.
    我听见一阵拍打的声响，很近，很轻，就像一首摇篮曲。
28. I wallow in sounds of flapping wings
    我在扇动双翼的声音中沉溺
29. Look at the eagle flapping its wings, it's mine.
    看那只振翅飞翔的鹰，那是我养。

noun

1. the motion made by flapping up and down

   Synonym:    flapflutterfluttering