tugboat
n. 拖船(等于 towboat 或 tug)
例句
The hooting of a tugboat adds its grave and tender note.
拖船的鸣笛声增添了它庄重而温柔的调子。
In the little, brown tugboat, we can see the new industrial era starting.
在这艘小小的棕色拖船里,我们可以看到新工业时代的开始。
The tugboat could draw extra power from the battery when full-power surges were needed.
当需要全功率激增时,拖船可以从电池获得额外的电力。