B 开头单词
by marriage 与婚姻有关的
by many accounts 在很多人看来
by mail 邮寄;通过写信,通过邮递;按信件
by lysis 转轻期
by lumbar [医药科学]腰椎给药
by lucky coincidence 机缘巧合 碰巧
by luck 侥幸地
by letter 以书信形式
by leaps and bounds adv. 飞跃地,突飞猛进地
by law n. 根据法律,在法律上;附则
by land 由陆路
by lack of 因没有...;因缺乏...
by jove 天啊(非正式,表示惊讶或强调)
by itself 单独地;自动地
by itsef 独自地;自动地