fro

Pat rolled the trolley to and fro.

帕特来回推着手推。

Those boats are prepared for waftage to and fro.

船舶是准备用来来回运送货物的。

Wilkie watched the to and fro of their dancing.

威尔基看着他们来来回回地跳舞。

They travel to and fro between London and Paris.

他们奔走于伦敦和巴黎间。

In a huge sideways jumps called a grand jete, a skillful ballet dancer seems to float fro an impossible length of time.

在种大幅度的侧身跳跃动作（小跳）中，个技艺精湛的芭蕾舞演员好像在空中可以停上人难以置信的时间。