bywithon的用法区别

by一般是交通工具的时候用，如byair坐飞机 ；bybus坐汽车.

with一般后跟具体的工具，如catchthebagwithyouhands.

on用得很少，主要是通讯，如onthetelephone,ontheinternet.

All the statistical computations were performed by the new software system.

所有的统计计算均由新的软件系统完成。

He is well on his way to show business immortality.

他很快就会成为娱乐界永世流芳的人物。

The union is in dispute with management over working hours.

工会与资方在工作时间上发生纠纷。