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。 |
