buy up    全买；尽可以多地买进；囤积

The speculators are trying to buy up the supplies of raw materials．投机商正在大肆囤积原材料。

They have been buying up all available land．他们一直在买所有能买到的地皮。

buzz off  go away；hurry away；ring off on the phone 走开；匆匆离去；挂断电话

Buzz off！I am sick of you．我讨厌你，快走开。

After she said this，she buzzed off．说完这句话，她就把电话挂断了。

by the name of .  under the name of  . having the name 名叫；以…名义

She works in the business by the name of Philips Electronics Company．她在一家名叫菲利普电器公司的企业工作。

The young man writes under the name of Xue Song．那个青年以雪松这个笔名写作。

by accident  . by chance；accidentally；unexpectedly 偶然地；意外地

Columbus discovered America by accident．哥伦布偶然发现了新大陆。

I met her by accident in the street．我在街上偶然碰到了她。

 by all means . of course；certainly；definitely当然；必定

I said I would come straight to the point．“By all means，”he replied．我说，我想要直截了当地谈。“当然可以，”他回答道。

 by all means . trying every means possible；at all costs 竭力；务必；无论如何

He will try to get the work done by all means．他会竭尽全力完成那件工作的。

He felt that he should by all means warn his friend．他感到他无论如何要警告他的朋友。

by all odds . without question 无疑地

by all odds we should win the game，because the other team is so weak．毫无疑问，我们应该赢这场比赛，因为对方太弱了。

by and by  .  soon；before long 不久

Things are bound to get better by and by．情况不久就会好起来的。

The boy said he would do his homework by and by．这男孩说他一会儿就做作业。

by and large . on the whole；in general 总的说来；大体上说

by and large，your suggestion is a good one．总的说来，你的建议是好的。

by and large，you'll live longer if you try to be more easygoing about life．大体上可以说，如果你对待生活能宽容随和的话，你就会活得长一些。

by any means . in any way possible 无论用什么办法

He said he would attend the seminar by any means．他说他无论如何也要参加这次学术讨论会。

by chance . by accident；unexpectedly 偶然地；意外地

It happened by chance．这是偶然发生的。

The apple fell by chance on Bobby's head．苹果碰巧掉在鲍比的头上。

by comparison . compared with 相比较

This film is a greater success than that one by comparison．相比之下，这部电影比那部更为成功。

This one is really cheaper by comparison．相比之下，这个确实便宜。

by day . during the day 白天

He works in the factory by day and writes at home by night．他白天在工厂上班，晚上在家写作。

by degrees .  gradually；step by step 逐渐地；慢慢地

The days are getting colder by degrees．天气渐渐冷起来了。

Their friendship grew by degrees into love．他们的友谊逐渐发展为爱情。

We gained our experience by degrees．我们的经验是逐渐获得的。

by design . on purpose；as planned 故意地；有意地

I don't know whether he did it by accident or design．She told me that he did it by design．我不知道他做这事是偶然的还是故意的，她说他是故意的。

by dint of .through；as a result of 通过；用…办法

The country boy succeeded by dint of persistent efforts．那个农村孩子经过坚韧不拔的努力而获得成功。

by express . by rapid method of conveyance 快件邮寄

She sent a letter by express．她用快件寄了一封信。

by far . evidently；clearly 明显地

He is by far the best student in this class．他显然是这个班里最优秀的学生。

by far .；very much 甚为

Books are by far the most lasting products of human effort．书籍是人类最持久的财富。

The second half of his voyage was by far the more dangerous part，during which he sailed round the treacherous Cape Horn．这后半航程更为艰险，在此期间，他绕过了险情四伏的合恩角。

by fits and starts .  irregularly；at intervals；without steady application 断断续续地；不持久地；无恒心地

You will never get anywhere if you study just by fits and starts．如果你断断续续地学习，你将一事无成。

He failed to get a fixed job，but went here and there working by fits and starts．他只是断断续续地一会儿在这儿干，一会又在那儿干，从没有一份固定的工作。

Nothing great can be done by fits and starts．没有恒心，任何大事都不可能干出来。

by force . compelling；by violent means 强迫；用暴力争取

The police took his property by force．警察抢走了他的财产。