Hull cell

例句：

1. 1. The ship's hull is made of steel.
   这艘船的船体是用钢做的。
2. 2. The keel of the boat is strong enough to support the weight of the water.
   船的龙骨足够坚固，能承受水的重量。
3. 3.The hull of the ship is covered in paint.
   船的船体被涂上了油漆。