I am under the weather.=I am not feeling well.我不太舒服!May I take a rain check?可不可改到下次?I am not myself today.我今天什么都不对劲!Let’S get it straight.咱们把事情弄清楚!What’S the rush!急什么!Such a fruitcake!神经病!1’ll swing by later.=1’ll stop by later.待会儿，我会来转一下。I got the tip straight from the horse’S mouth.这个消息是千真万确的(tip指消息)。easy as pie=very easy=piece of cake很容易。take French leave不告而别。I don’t get the picture.=I don’t understand.我不明白。You should give him a piece of your mind.你应该向他表达你的不满。hit the road=take off=get on one’S way离开。Now he is in the driver’S seat=He is in control now.他现在有控制权。Keep a low profile(or low key).采取低姿态。Kinky=bizarre=wacky=weird古怪的。klutz(=clutz)=idiot白痴、笨蛋。know one’S way around对某地很熟悉。lion’S share份。tailgate尾随(尤其跟车跟得太近)。take a back seat.让步。take a hike=leave me alone=get lost滚开。hit the hay=go to bed睡觉。green hand生手、没有经验的人。chill out=calm down=relax冷静;放松点。rip off=steal偷;剥夺。G.I.(Government Issue)or GI Joe美国大兵。mess around(with)瞎混。snob势利眼。sneak in。sneak out偷偷溜进去，溜出来。She is such a brown—noser.她是个马*精。This is in way over my head.对我而言这实在太难了。Keep your study(work)on track.请按进度读书(工作)。Did you come up with any ideas?有没有想到什么新的意见?Don’t get uptight!Take it easy.别紧张，慢慢来!Get one’S feet wet.涉足;下海。A thousand times no!绝对办不到!Who knows!天晓得!Come on!快点，振作起来!Don’t mention it.没关系，别客气。