the flap of [noun]
表示某物的垂悬片或盖片。
The flap of the tent was loose.
帐篷的垂片松了。
襟翼；拍打；摆动；拍打声；慌乱；不安；小风波；闪音；轻拍音；皮瓣；组织瓣
a flat piece of material that is fixed along one edge and can hang down, lift up, or move to cover an opening
宽而柔韧的悬挂片状物。
Anything broad and flexible that hangs loose, or that is attached by one side or end and is easily moved.
铰接叶片；活板。
A hinged leaf.
飞机机翼后缘的铰接面,用于增加升力和阻力。
A hinged surface on the trailing edge of the wings of an aeroplane, used to increase lift and drag.
鳐鱼的侧鳍。
A side fin of a ray.
宽大松散之物的摆动,或由此产生的声音或拍打。
The motion of anything broad and loose, or a sound or stroke made with it.
争议、丑闻、骚动或不安。
A controversy, scandal, stir, or upset.
由单一肌肉收缩产生的辅音,如标准美式英语 body 中的 /ɾ/ 音。
A consonant sound made by a single muscle contraction, such as the sound /ɾ/ in the standard American English pronunciation of body.
不完全脱离身体的组织块,是整形手术的中间阶段。
A piece of tissue incompletely detached from the body, as an intermediate stage of plastic surgery.
删去一组顶点后所得导出子图的连通分量。
A connected component of the induced subgraph formed by deleting a set of vertices.
The envelope's flap was not sealed properly.
信封的封口没有封好。
用法提示：这里 'flap' 指信封上的封口片，是名词用法。
The pilot lowered the flaps to slow down the plane.
飞行员放下襟翼以降低飞机速度。
用法提示：这里 'flaps' 是名词复数，指飞机机翼上的襟翼。
The bird's wings gave a loud flap as it took off.
鸟起飞时翅膀发出响亮的一拍。
用法提示：这里 'flap' 指一次拍打的动作，是名词用法。
表示某物的垂悬片或盖片。
The flap of the tent was loose.
帐篷的垂片松了。
用形容词描述 flap 的特征。
He sewed a cloth flap over the opening.
他在开口处缝了一个布盖片。
指出 flap 所在的物体。
The flap on the pocket is torn.
口袋上的盖子破了。
grammar · medium
易错句子The bird's flap is hurt.
正确表达The bird's wing is hurt.
学习者混淆了'flap'与'wing'。'flap'指一端固定的薄片，而'wing'是鸟的翅膀。在描述鸟的翅膀受伤时，应使用'wing'而非'flap'。
grammar · medium
易错句子I need to fix flap on the table.
正确表达I need to fix the flap on the table.
可数名词'flap'前需加冠词或限定词。这里'flap'指桌面上的活板，应使用'fix the flap'。
flap指扁平物体上下拍动的动作，flop指笨重或松垮地落下或失败的动作
flap指上下或前后摆动，flip指快速翻转或旋转
信封口盖
Please lick the envelope flap and seal it.
请舔一下信封口盖然后封好。
帐篷帘
He unzipped the tent flap and crawled inside.
他拉开帐篷帘的拉链，爬了进去。
口袋盖
The pocket flap was secured with a button.
口袋盖用纽扣扣住了。
皮瓣
The surgeon used a skin flap to cover the wound.
外科医生用皮瓣覆盖伤口。
机翼襟翼
The pilot extended the wing flap to slow down the aircraft.
飞行员放下机翼襟翼以减慢飞机速度。
与flap常一起出现，描述鸟类或飞机的拍打动作
flap是机翼的一部分，用于增加升力
信封的封盖部分常用flap表示
旗帜在风中飘动可以用flap描述
标签或小片常与flap一样可翻动
慌乱，紧张
She was in a flap when she realized she had lost her keys.
她发现钥匙丢了时慌乱不已。
陷入慌乱
Don't get into a flap about the exam; just do your best.
不要因为考试就慌乱，尽力就好。
引起骚动
His resignation caused a flap in the office.
他的辞职在办公室里引起了骚动。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.