fro

adv.

向那边，向后；

prep.

〈英方〉同；

n.

〈美俚〉非洲发型= Afro；

na.

见；

复数：fros

1. He is walking to and fro in the room.
   他在房间内踱来踱去。
2. The ship was rolling heavily to and fro.
   那船晃来晃去很不平稳。
3. Trucks shuttled to and fro on the high ways.
   车辆在高速公路上穿梭行驶。

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