life boat

例句：

1. 1. The lifeboat was launched in a strong current.
   救生艇在强流中被发射。
2. 2.They were rescued by a lifeboat from the sinking ship.
   他们被一艘救生艇从沉没的船上救起。
3. 3.The lifeboat crew worked tirelessly to save everyone on board.
   救生艇上的船员们不辞辛劳地工作，以拯救船上的每一个人。