B [b]be above board 光明正大的 [b]be crazy about 　爱的发狂 [b]例句： I am really crazy about Michael Jackson's rock'n'roll. [b]　　　　　 我对麦克杰克逊的摇滚爱的发狂。 [b]be for the birds 荒唐可笑的；毫无价值的 [b]例句： Their opinions on art are simply for the birds. [b]他们对艺术的见解真是荒唐可笑。 [b]beat it 叫人 " 走开 " 的 口语 ，和 "Be off! 差不多，不过比后者更流行。 [b]例句： He kept on bothering me, so I told him to beat it. [b]他不停地烦我，因此我叫他走开。 [b]beat ones brains (out) 　指做事困难， " 伤透了脑筋 " [b]例句： I beat my brains (out) to get a job. [b]为了找寻工作，我伤透了脑筋。 [b]beat sb to the draw 　抢先某人行动 [b]例句： Mary wanted to buy that painting by Picasso, but another millionaire beat her to the draw. [b]玛丽想买毕加索的那幅画，不过另一个百万富翁捷足先登了。 [b]beat someone by miles 　远强于某人 [b]例句： When it comes to fishing, I beat him by miles. [b]讲到钓鱼，我比他棒得多。 [b]beef 　口语上常用来指 " 抱怨 " 或 " 发牢骚 " ；作动词时后面跟 about. [b]例句： Tell me what's your beef? [b]你抱怨什么？ [b]before you know it 口语为 " 很快 " 。 [b]例句： I come back before you know it. [b]我很快就会回来。 [b]behave yourself 　劝人要有礼貌和行为检点，意思相同的口语还有 "Watch you manner.""Watch your P's and Q's". 和 "Don't get fresh." [b]例句： Please behave yourself before the guests. [b]在宾客之前你检点一些。 [b]behind bars 　坐牢 [b]例句： The judge will put him behind bars for at least two years. 法官最低限度也会判他坐两年牢。 [b]behind the scenes （ behind the curtain ）　 幕后 [b]例句： He is the man behind the scenes. [b]他是幕后人物。 [b]between ourselves 秘密地说 [b]例句： Between ourselves, there are no secrets. [b]　　　　　 咱们私下说说，没什么秘密。 [b]beyond the seas 在国外，在海外 [b]例句： He had a good time when he was beyond the seas. [b]　　　　　 他在国外时曾过得很快活。 [b]butt in 　插手，介入 [b]例句： Pardon me for butting in on your conversation, but this is important. [b]　　　　　 请原谅我打断了你们的谈话，不过这件事非常重要。 [b]by and large 　大体上，总的看来 [b]例句： I cannot totally take your point ， but by and large I think yours is reasonable. [b]我不能完全同意你的观点，但大体上你的观点是有道理的。[b][b]