travel about

• vi. 游动

例句

用作不及物动词 (vi.)

1. The swimmer thrashed about in the water.
   那个游泳的人在水中用力地游动。
2. The effect of the bearing travel clearance on the drill in the operations is analyzed.
   分析了工程钻机在施工过程中轴承游动间隙对钻机的影响。