1
be a shark (in/at sth)
此处shark指骗子或某方面特别精明的人。
He is a shark at poker, always winning big.
他玩扑克牌是个高手（骗子），总是赢大钱。
鲨鱼
sharks — plural of shark
先理解核心含义，再看它在真实句子里的用法。
鲨鱼
a large marine fish with sharp teeth
He is a shark at poker, always winning big.
他玩扑克牌是个高手（骗子），总是赢大钱。
任何属于超目鲨形总目、具有软骨骨骼和每侧头部有5到7个鳃裂的掠食性鱼类
Any predatory fish of the superorder Selachimorpha, with a cartilaginous skeleton and 5 to 7 gill slits on each side of its head.
利用他人,通常通过欺骗、谎言、高利贷或勒索的人。
Someone who exploits others, for example by trickery, lies, usury, extortion.
任何一类身体细长、主要为海生的肉食性鱼类,具有歪尾鳍,皮肤坚韧并覆盖细小齿状鳞片
any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales
这种动物的肉,可作为食物
Meat of this animal, consumed as food.
The shark is a powerful predator in the ocean.
鲨鱼是海洋中强大的捕食者。
AI contextual example
We saw a huge shark while diving.
我们在潜水时看到一条巨大的鲨鱼。
AI contextual example
Sharks have been around for millions of years.
鲨鱼已经存在数百万年了。
AI contextual example
a card shark
一个牌桌上的老千。
WordNet
此处shark指骗子或某方面特别精明的人。
He is a shark at poker, always winning big.
他玩扑克牌是个高手（骗子），总是赢大钱。
Shark attacks are rare but can be fatal.
鲨鱼袭击虽然罕见，但可能致命。
动词shark常用于诈骗义，后接into引导的介词短语。
He sharked me into buying a fake watch.
他骗我买了一块假表。
Not this
I saw shark in the ocean.
Use this
I saw a shark in the ocean.
英语中“鲨鱼”是可数名词，需要冠词a/an或定冠词the。中文没有冠词，学习者容易遗漏。改为a shark后符合语法。
Not this
There are many shark in this area.
Use this
There are many sharks in this area.
英语可数名词复数需加-s或-es。中文名词无复数变化，学习者常在复数语境中忘记加-s。改为sharks后正确。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
大白鲨
The great white shark is one of the most feared predators in the ocean.
大白鲨是海洋中最令人生畏的捕食者之一。
鲨鱼袭击
Shark attacks are rare but can be fatal.
鲨鱼袭击很少见，但可能致命。
鱼翅
Shark fin soup is considered a delicacy in some cultures.
鱼翅汤在某些文化中被视为美味佳肴。
高利贷者
Loan sharks often charge extremely high interest rates.
高利贷者通常收取极高的利率。
老千；打牌作弊者
He was known as a card shark who could cheat effortlessly.
他以能轻松作弊的老千而闻名。
鲨鱼缸（比喻充满激烈竞争的环境）
The startup entered the shark tank of the tech industry.
这家初创公司进入了科技行业的鲨鱼缸。
放高利贷者
He borrowed money from a loan shark and ended up in huge debt.
他向放高利贷者借钱，结果负债累累。
打牌老手（常指作弊者）
Be careful playing poker with him; he's a known card shark.
小心和他打扑克，他是个有名的牌场老手。
（电视节目等）开始走下坡路
Many fans think the show jumped the shark after the main character left.
许多粉丝认为该剧在主角离开后就开始走下坡路了。
鲨鱼！
In the 1975 film Jaws, Chief Brody yells 'Shark!' when he first sees the great white shark approaching the beach.
在1975年的电影《大白鲨》中，布罗迪警长第一次看到大白鲨靠近海滩时大喊“鲨鱼！”
鲨鱼饵！
In Finding Nemo (2003), Dory warns Marlin by saying 'Shark bait!' as they are chased by a shark.
在2003年的电影《海底总动员》中，多莉在被鲨鱼追赶时警告马林说“鲨鱼饵！”
Use sharks naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
鲨鱼(shark)的牙齿似锯齿，比喻诈骗如咬人。
名词 (鲨鱼): 中性/正式, 常见于海洋生物语境; 名词 (骗子): 非正式, 用于商业或金融诈骗; 动词 (诈骗): 非正式, 多用于口语欺诈场景
All listed words rhyme with /ʃɑrk/ (shark): they share the exact final sound /ɑrk/.
Dictionary facts from ECDICT, WIKTIONARY.