lifeboat
/ˈlaɪfbəʊt/noun
1- a specially constructed boat launched from land to rescue people in distress at sea救生船（从陆地上下水的特种船只, 用于海上救难）。
1.1
- a small boat kept on a ship for use in emergency, typically one of a number on deck or suspended from davits（轮船甲板上或悬在轮船吊艇柱上的）救生艇。
派生词