46.be short of hands 缺乏人手，人手不夠
　　short作表語時指“某物不夠，缺乏某物”的意思，常與介詞of搭配使用，既短語be short of something。
　　A: You look worried about something. What’s the matter? 你好像很著急，怎么了？
　　B: My computer isn’t working and I have got an important contract to type. 我的電腦壞了，可我還有一份重要合同要打出來。
　　A: Why don’t you call the computer company? 你為什么不給計算機公司打個電話？
　　B: I did, but they said the company was short of hands and couldn’t send any man today. 我打了，可他們說人手不夠，今天不能派人來。
　　A: What should I do? 我該怎么辦呢？
　　
47.be supposed to 認為應該，必須；認為可以
　　此語用被動語態表示“被許多人相信”，如：The castle is supposed to be haunted.（人們都說那座城堡鬧鬼。）此語在口語中表示“認為可以做某事”，如：None of us girls is supposed to smoke.（我們女孩子都不吸煙。）此語中的supposed是動詞的過去式，supposed作為形容詞，意指“假定的，被信以為真的，想象中的”。
　　A: The train was supposed to get to Beijing at eight o’clock. 火車該八點鐘到北京。
　　B: Eight o’clock? It’s already eight-thirty. 八點？現在都八點半了。
　　A: What if he didn’t see us? 要是他沒看見我們怎么辦？
　　B: He would take a taxi, I think. 他會打出租車的。
　　A: Maybe the train is late. 不會是火車晚點了吧。
　　B: It is impossible. I have heard the broadcast. 不可能。我已聽見廣播了。
　　
48.be too quick on the trigger 操之過急，行動過于倉促
　　trigger指槍的“扳機，觸發器”。該習語直譯為“過早地扣動扳機”，引申為“行動過于倉促，操之過急”。
　　A: You shouldn’t have had Bob do that job. He is still a green hand. 你不該讓鮑勃做那項工作，他畢竟還是一個新手。
　　B: But he needs to be given a chance. 但是他也需要機會呀！
　　A: You should not have been too quick on the trigger. 可你不該太性急呀！
　　
49.bear down 加倍努力
　　該習語本身就有“竭盡全力、加緊努力”的意思。例如：You will bear down if you expect to pass the exam. （你要是指望考試及格的話，就得加一把勁。）
　　A: If we can’t finish the work before deadline, we will be fined according to the contract. 如果我們不能在規定的期限內完成工作，根據合同，我們將會被罰款。
　　B: We are already bearing down to do the work. 我們已經在很努力地工作了。
　　A: I know. What I mean is that we should improve our efficiency. 我知道。我的意思是我們必須提高效率。
　　
50.beat someone at his own game 將計就計地懲罰某人
　　習慣用語beat someone at his own game直譯為“以某人自己設計的把戲打擊某人”，與漢語的“將計就計”近似。
　　A: You seem to be worried about something. 你看上去很擔心。
　　B: Yeah. I don’t know how to deal with that smart businessman. 是呀。我不知道該怎么對付那個狡猾的商人。
　　A: Don’t worry. Let’s beat him at his own game. 別擔心，我們可以將計就計。
　　B: A good idea. 好主意。