英语常用习语In The Nick Of TimeMeaning： At the last moment, just before something bad happens 意思：在最后一刻，来的正是时候。
例句：1. The accident victim was near death, but the ambulance arrived in the nick of time and the paramedic saved her.这个伤者已经奄奄一息了，但是救护车在最后一刻赶到了！护理人员把他从死亡边缘拉了回来。
2. We ran as fast as we could toward the bus stop and got there just as the bus was pulling to a stop. We got there in the nick of time.我们以最快速度朝汽车站跑去，当我们到了车站时，汽车正好停了下来，我们到的正是时候。
3.He got to the railway station in the nick of time.他在最后一刻赶到了火车站。
Tips：①这个俚语常用在情况非常紧急的时候。
②“nick”还有一个很常见的词组“nick name”，意思是昵称。
Jack Of All TradesFull expression: Jack of all trades and master of none.万事皆通，洋洋稀松Meaning：a person who knows a little about a lot of different subjects or activities, but not a lot about any one of them意思：杂而不精的人，万事通。
例句：1. Walt is good at so many things: he can fix the plumbing and wiring in his house, he fixed his roof when it leaked, he installed his washer and dryer, and he paints the house when it needs it. He’s really a jack of all trades.Walt擅长做那么多事情：修理家里的管道和电线、修漏水的屋顶，他也会安装洗衣机和烘干机，甚至他可以自己粉刷新房子，他真是一个万事通！2. The position in the company required someone who knew everything about a very narrow subject. They weren’t looking for a jack of all trades.公司里的这个位置需要那种对一个学科有所专研的人，而不是一个杂而不精的人。
3.He repairs cars, he pains houses, he makes furniture. He’s a really jack of all trades.他又修车又粉刷房子，还会做家具，什么都会干一点。
Tips：①trade：本意是“行业”、“贸易”。
因此all trade②Jack：这个人名在这里是虚指某人。
其他人名类似用法，还有“uncle sam”和美国的缩写都是U.S. 因此就被用来指“美国政府”；“Jane Doe”指“无名氏”。
Keyed UpMeaning: Full of nervous anticipation; anxious; tense意思是：紧张不安的；焦躁的例句：1. Stop pacing the floor. Relax. Why are you so keyed up?不要来回走了，放松！你为什么如此不安？2. Charles was so keyed up waiting for the wedding to begin that when it finally did, he dropped the wedding ring.Charles在婚礼开始前太激动了，以至于在婚礼开始时，他把结婚戒指弄掉了！Tips：①常用要发生重要事情前。
Let The Cat Out Of The BagMeaning：To reveal a secret意思是：真相大白OPP: keep sth. Under your hat.守口如瓶例句：1. When Rachel decided she was going to quit her job, she told her best friend but she didn’t want to let the cat out of the bag. Rachel told her friend not to tell anyone.当Rachel决定辞职的时候，她告诉了她最好的朋友，同时朋友不会泄露这个秘密的。
因为Rachel告诉朋友不要告诉任何人这件事情。
2. The children put their money together to buy their mother a birthday present, but the youngest child became excited and couldn’t keep from telling his mother what they had bought. His brothers and sisters told him he shouldn’t have let the cat out of the bag.孩子们把他们的钱凑在一起为他们的妈妈买一个生日礼物，但是最小的那个孩子啊太兴奋了，结果说漏嘴了。
他的哥哥姐姐曾经告诉过他不准把这件事说出去。
3.Nobody had been offered the job until her husband let the cat out of the bag.直到她丈夫无意中说漏了嘴，大家才知道这份工作已经给了他。
Tips：和“cat”有关的俚语：①a cat nap 打个盹儿②fat cat 有钱有势的人③cat in the pan 叛徒④cats a nd dogs 价值低的股票⑤as sick as a cat 真想呕吐，病得厉害⑥the cat's pajamas 卓越的人（或事物）Take French leaveMeaning：To take time away from your job without asking for permission意思是：不辞而别例句：1. Everyone who takes French leave can be received punish severely.任何擅离职守的人都要受到严惩。
2. I'm sure I saw you at the party last night, but you were nowhere to be found when I wanted to talk to you. Why did you take French leave?我肯定昨晚在聚会上看到你的，但后来要找你说话的时候却不见人了。
你怎么不辞而别啊？3.I think I might take French leave this afternoon and go to the cinema.我想今天下午我可以偷偷溜出去看场电影。
Tips：①来源：This idiom is said to refer to the eighteenth-century French custom of leaving a dinner or party without saying goodbye to the host or hostess.法国人都喜欢不告而别？并非如此，但是在18世纪，法国人性格随便，性情浪漫，在参加宴会等一切社交聚会时，养成了不向主人告别就擅自离去的习惯。
Dutch uncleMeaning：someone who advises or criticizes a younger person in a severe way 意思是：喋喋不休的教训的人例句：1.Stop talking to me like a Dutch uncle about my duty to my family.在有关我的家庭责任感这个问题上，用不着你来教训我。
2. Dutch uncle. Try to become a kind person.不要做一个吹毛求疵的人，试做一个善良的人。
Tips：和人名有关的俚语①John Q. Public 普通人②Jane Doe 无名氏③Uncle Sam 美国政府an eye for an eyeMeaning：the idea that someone who has harmed another person should bepu nished by having the same thing done to them意思是：以牙还牙例句：1. "An eye for an eye makes the whole world blind. " - Gandhi“以眼还眼会使全世界都看不见。
”-甘地2.I hear he has been speaking ill of you. You should make an eye for eye andtooth for t ooth revenge.我听说他一直在讲你坏话，你应该报复他，以眼还眼，以牙还牙。
Tips：这句谚语在《圣经》中多次出现。
摩西受上帝之命，成为在埃及做奴隶的以色列人的领袖。
他发布法令："The punishment is to be a life for a life, an eye for an eye, a tooth for a tooth, a hand for a hand and a foot for a foot.""要以命偿命，以眼还眼，以牙还牙，以手还手，以脚还脚。
" 。
汉语中"以眼还眼"、"以牙还牙"即源于此，表示"以其人之道还治其人之身"。
Don’t have a cow.Meaning：don't make a fuss.意思是：不要大惊小怪例句：1. Don't have a cow! it's just a small bug.别大惊小怪的，这只是一个小臭虫。