towed hydrophone

例句：

1. 1. The boat was towed by a tugboat.
   这艘船被拖船拖走了。
2. 2. The car was towed away by the police.
   那辆汽车被警察拖走了。
3. 3. The ship was towed into port safely.
   这艘船安全地被拖进了港口。