ship natural ventilation

例句：

1. 1. The ship sailed across the ocean.
   这艘船驶过了海洋。
2. 2. The captain ordered the ship to turn around.
   船长命令船只掉头。
3. 3. The ship was carrying a cargo of gold when it sank.
   这艘船载着一批黄金沉没时。