1
a droop in + noun
表示某数量或程度的下滑，常搭配抽象名词。
There has been a droop in sales this quarter.
本季度销售额有所下降。
下垂；低垂；下垂的样子
先理解核心含义，再看它在真实句子里的用法。
下垂；低垂；下垂的样子
A condition or posture of drooping; something that is limp or sagging.
There has been a droop in sales this quarter.
本季度销售额有所下降。
软弱下垂的东西。
Something which is limp or sagging.
下垂的形状
a shape that sags
下垂的状态或姿势。
A condition or posture of drooping.
飞机机翼前缘的铰接部分,起飞和着陆时向下旋转以增加升力。
A hinged portion of the leading edge of an aeroplane's wing, which swivels downward to increase lift during takeoff and landing.
The droop of the old willow tree suggested its age.
那棵老柳树的下垂状表明它已经老了。
I noticed a slight droop in the curtains after they were washed.
我注意到窗帘洗过后有一点下垂。
There was a noticeable droop in the flower stems from lack of water.
由于缺水，花茎明显下垂。
表示某数量或程度的下滑，常搭配抽象名词。
There has been a droop in sales this quarter.
本季度销售额有所下降。
描述具体物体的下垂状态。
The droop of the branches indicated a lack of water.
树枝的下垂表明缺水。
Not this
A droop of rain fell on the window.
Use this
A drop of rain fell on the window.
droop（下垂）和drop（水滴）拼写发音相似，但意义不同，表示‘水滴’应用drop。
Not this
There is a droop in sales this quarter.
Use this
There is a slump in sales this quarter.
droop指物理下垂，而slump指数量或价值的骤降，此处应用slump。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
面部下垂
A sudden facial droop can be a sign of a stroke.
突然面部下垂可能是中风的征兆。
眼睑下垂
The patient complained of an eyelid droop that got worse in the evening.
病人主诉眼睑下垂，而且晚上更严重。
肩部下垂；肩膀低垂
A shoulder droop on one side may indicate muscle weakness.
一侧肩部下垂可能表明肌肉无力。
机翼前缘下垂
The aircraft's wing droop improves lift at low speeds.
这架飞机的机翼前缘下垂设计提高了低速时的升力。
发长 /uː/ 音 (如 food, boot)
Use droop naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
花儿缺水低下头——下垂的样子，这就是 droop。
语域：neutral 常见场景：一般书面描述、航空工程 该名词相对少见，多用于书面或技术描述；日常口语更常使用动词形式。航空语境中特指机翼前缘可下偏的部件。
与 droop 押韵（都发 /uːp/）：hoop, loop, swoop, troop, stoop, group（注意 group 拼作 -oup 但发音相同）。注意形近音不同的词：drop 的元音是 /ɒ/（美式 /ɑ/），和 droop 的 /uː/ 不同。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.
Watch the sound change