例句與造句

1. Swimmers practiced in a canvas tank, long by wide, constructed on deck.
2. During the crossing, they trained while harnessed in a canvas tank filled with sea water.
3. In a tiny canvas tank filled with sea water, the swimmers, one at a time, swam 5 to 10 minutes, held in place by a belt around the waist.
4. It's difficult to find canvas tank in a sentence. 用canvas tank造句挺難的