y+交通工具
by+名词或代词宾格（用于被动语态）
by accident偶然
by all means无论如何,必定
by chance偶然,碰巧
by comparison比较起来
by contrast比较起来
by hand用手
by heart牢记,凭记忆
by itself独自,单独
by means of借助于,用
by mistake错误地
by no means决不
by oneself独自地,单独地
by reason of由于
by the way顺便提一下,另外
by turns轮流,交替地
by virtue of由于
by way of经由,通过……方式
more and more 越来越
more or less 或多或少
no more than 不过,仅仅；和……一样不
once more 再一次,又一次
stop sb.from doing
stop to do sth.
stop doing sth