B 開頭單詞

by default 缺蓆； 不到場(chǎng)；默認(rèn)情況下

by deed 以契據(jù)的形式

by daylight 在白天

by day and by night 日日夜夜

by day 在白天；日間

by date 依日期，按日期

by credit card 用信用卡 刷信用卡 通過信用卡

by craft 用詭計(jì)（手腕）

by courtesy of 矇…的好意；由於…的作用

by courtesy 禮貌起見

by courier 由快遞公司傳遞

by correspondence 用寫信的辦法

by convention 按照慣例

by contrast with 和…相對(duì)比；與…比較起來

by contrast 相比之下；與之相比

by contract 承包；根據(jù)郃同

by compulsion 強(qiáng)迫地

by comparison to n. 與...相比（同...比較起來）

by comparison 相比之下，比較起來

by company [計(jì)算機(jī)科學(xué)技術(shù)]依公司