1、往返
...go from从…处出发to and from往返；来来回回from out of从…之中 ...
2、来回
... city driving在城里开车 to and from来回 think over仔细考虑 ...
3、来来往往
... 一阵阵 （不规则地） By fits and starts 来来往往 To and from 断断续续 Off and on ...
Messages to and from邮件来往
Often to and from经常来往
to and from work上班和下班
To and from school上下学
Movement to and from动作的去由
Access to and from school进出学校
commute to and from work上下班
Convenient to and from work方便上下班