endless tow

例句：

1. 1. The boat was pulledby the strong current for hours without stopping.
   这艘船被强劲的水流拖了几个小时都没有停下来。
2. 2. She was constantly dragged down by herworries and stress.
   她不断地被忧虑和压力拖累。
3. 3. The team was struggling to keep upwith the fast-moving caravan.
   队伍努力跟上快速移动的商队。