DAY 32 improper/ｉｍｐｒｐ/ a. Its improper to laugh and joke in serious situation. 猜一猜 A. 可笑的B. 不适当的 C. 放松的D. 紧绷的 翻译 在严肃的场合大笑或开玩笑是不合适的。 来源：www.examda.com 大头巧计 is(not) proper(合适的) → 不合适的 词义扩展 a. 不的Sometimes, improper use of words can cause big trouble. 有时，错误的言辞会引起很大的麻烦。 jam/ｄｍ/ n.I was trapped by the traffic jam on the way to the hospital. 猜一猜 A. 事故B. 阻塞C. 突变D. 警察 翻译 我在去医院的路上被交通阻塞困住了。 词义扩展 n. 果酱 The bread tastes better with tomato jam on it. 包涂上番茄酱更好吃。 来源：www.examda.com v. （使）阻塞，（使）轧住不动The crowds jammed the streets, and no car could pass. 街上挤满了人，汽车无法通行。 let/ｌｅｔ/ v.We should not let him do that at his own will any more. 猜一猜 A. 通知B. 听任C. 解答D. 演示 翻译 我们再也不能让随心所欲行事了。 近义词 allow 允许，许可，准许.permit 允许，许可，容许 词义扩展 v. ① 设，假设Let you be on the spot of the accident. 假设你就在事故现场。 ② 出租，租给 If you really want to let my house, I can make certain concession on the price. 如果你确实想租我的房子，我在价格上可以适当些让步。 词 组 let alone ① 不干涉Let me lone. I need to think it over. 不要管我，让我一个人仔细想想。 ② 更不用说The baby cant walk yet, let alone run. 这个婴儿连走都不会，更不用说跑了。 let down① 放下The trousers are so short that my mum let them down. 裤子太短了，妈妈把放长了些。来源：www.examda.com② 使失望He turned his back on me when I was in trouble, which turned me down. 我有困难的时候他理都不理，这确实令我失望。 let go 放开，松手Let go of my hand! You are hurting me1. 放开我的手，你弄疼我了。 let in 让…进入，放…进来The broken window let the wind in. 风从这扇破窗进来了。 let loose 放开，放松，释放Sometimes you should let him loose. it does no good of too much pressure. 有时你应让他放松一下，太多压力没好处。 let off ① 放（炮，烟火），开（枪）We let off fireworks to celebrate the 15th anniversary of the foundation of our department. 我们放烟花来庆祝建院15 周年。 ② 宽恕，从宽处理The policeman let the driver off by warning of his speed only. 警察只是警告他车速太快，没有处罚他。 ③ 免除The teacher let off punishment in view of his good behavior. 鉴他的良好表现，老师免除了对他的处罚。 let out ① 放掉，放出，发出She let out a scream at the sight of a big mouse. 到一只大老鼠，发出了尖叫声。 ② 放大（衣服）I have grown higher and my coat has to be let out. 我长高了，必须把上衣放大一些。 ③ 放松（绳子）Let out the rope tying the dog. 把拴狗的那条绳子放松点。