a nip in the air
collocation空气中的寒意；天气寒冷
There's a nip in the air this morning; you'd better wear a coat.
今天早上天气寒冷，你最好穿上外套。
轻咬
nips — plural of nip
先理解核心含义，再看它在真实句子里的用法。
轻咬
A playful bite.
The puppy gave a playful nip on my finger.
小狗在我的手指上轻轻咬了一口。
玩耍式的咬；轻咬。
A playful bite.
少量食物或饮料,尤指少量烈酒
A small amount of food or drink, (particularly) a small amount of liquor.
用指甲或牙齿掐捏。
A pinch with the nails or teeth.
寒冷刺骨的天气；严寒。
Briskly cold weather.
She trimmed the thread with a quick nip of the scissors.
她用剪刀快速一剪，修剪了线头。
I felt a sharp nip on my ankle and realized a mosquito had bitten me.
我感到脚踝上一阵刺痛，意识到被蚊子咬了。
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空气中的寒意；天气寒冷
There's a nip in the air this morning; you'd better wear a coat.
今天早上天气寒冷，你最好穿上外套。
喝一小口（尤指酒）
He took a nip of brandy to warm up.
他喝了一小口白兰地暖暖身子。
轻咬某人一下；掐某人一下
The kitten gave my hand a gentle nip.
小猫轻轻地咬了一下我的手。
一小杯威士忌；少量威士忌
She poured a nip of whiskey into his glass.
她往他的杯子里倒了一点威士忌。
防患于未然；把某事扼杀在萌芽状态
The principal tried to nip the conflict in the bud before it spread.
校长试图在冲突扩散前将其扼杀在萌芽状态。
势均力敌；不相上下
The two candidates were nip and tuck throughout the election campaign.
两位候选人在整个竞选过程中始终势均力敌。
空气中的寒意；天气微寒
There's a nip in the air, so you'd better bring a coat.
空气中带着一丝寒意，你最好带件外套。
《整容室》（美国电视剧名，“nip”此处指小范围的整形切口）
She booked a consultation for a nip and tuck before the wedding.
她在婚礼前预约了一次小整形手术的咨询。
Use nips naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
ni音近‘捏’，p像手指一掐——轻咬、掐捏、寒风刺骨都像被‘捏’了一下。
语域：neutral 常见场景：describing a pet's playful action、everyday conversation、light narrative writing 这里指“轻咬”这一义项。nip 作名词表示“轻咬”时，通常用于日常描述，如小狗或小孩轻轻咬一下，语气中性，不算正式也不算俚语；在口语和书面叙事中都比较常见。注意与“少量烈酒”等其它义项区分。
这些词均与 nip /nɪp/ 押韵，结尾都是 /ɪp/。注意：nib /nɪb/ 拼写相似，但结尾为浊音 /b/；nap /næp/ 和 nope /noʊp/ 拼写近似，但不押韵，发音不同。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.