casco insurance

例句：

1. 1. The sailors were rowing the casco to the island.
   水手们正划着小船向岛屿前进。
2. 2. The captain ordered the casco to be repaired immediately.
   船长命令立即修理小船。
3. 3. The casco was a symbol of their freedom and independence.
   小船是他们自由和独立的象征。