submerged craft

例句：

1. 1. The ship sank beneath the waves, leaving only itshull visible.
   这艘船沉入水下，只剩下船体露出水面。
2. 2. Theocean is a vast submerged world, teeming with life.
   海洋是一个广阔的水下世界，充满了生命。
3. 3. Thesubmersible was designedto explore the deep sea withoutdisturbing the marine life.
   潜水器的设计是为了在不打扰海洋生物的情况下探索深海。