before long 不久以后
beside point 離題的,不相干的
beyond question 毫無(wú)疑問(wèn)
by air 通過(guò)航空途徑
by all means 盡一切辦法,務(wù)必
by and by 不久,遲早
by chance 偶然,碰巧
by far 最,……得多
by hand 用手,用體力
by iteslf 自動(dòng)地,獨(dú)自地
by means of 用,依靠
by mistake 錯(cuò)誤地,無(wú)意地
by no means 決不,并沒(méi)有
by oneself 單獨(dú)地,獨(dú)自地
by reson of 由于
by the way 順便說(shuō)說(shuō)
by virtue of 借助,由于