B 开头单词
by sheer proximity [经济学]纯然由于靠近
by sheer chance 纯属偶然地
by sex 按性别分
by service [计算机科学技术]依服务
by server [计算机科学技术]依服务器
by seperate post 分别邮寄，另行邮寄
by separate mail 另邮；零邮
by sent [计算机科学技术]依寄信
by sea 由海路；乘船
by scores 不少
by scientific process [商业]科学精制
by rule 墨守成规地；按照规则地
by rough estimate [经济学]据粗略估计
by rote 死记硬背
by road 由公路，从陆地上
by rights 按理说；正当地
by return of post 立即回信；由下一班回程邮递立即回信
by return 立即回答，立即回复；由下一班邮递带回；由原班回程邮递带回
by request 应…的请求，应邀