life preserver

美 [ˈlaɪf prɪˌzɜrvər]
英 [ˈlaɪf prɪˌzɜː(r)və(r)]
  • n.救生用具
  • 网络救生工具;救生圈;救生设备
复数:life preservers  
life preserver
n.
1.
救生用具a piece of material that floats well, or a jacket made of such material, used to rescue a person who has fallen into water, by keeping them above water

例句

释义:
类别:全部全部,口语口语,书面语书面语,标题标题,技术技术
来源:全部全部,字典字典,网络网络
难度:全部全部,简单简单,中等中等,