lifesaver

• 指救生员，即受雇拯救溺水游泳者的人；也指救生圈等救生设备。引申义指在困难时提供帮助的人或事物、救星。

A noun referring to a person employed to rescue swimmers in distress, or a buoyant ring used as a life preserver.

1. Beach or pool attendantA2formal

   A person employed at a beach, swimming pool, or other aquatic area to ensure the safety of swimmers and prevent accidents.

   救生员

   • The lifesaver blew his whistle to warn the swimmers about the strong current.
   • She works as a lifesaver at the local community pool during the summer.
   • A trained lifesaver is always on duty when the beach is open.

   同义词lifeguard

2. Buoyant life preserverB1formal

   A ring or other device made of buoyant material designed to keep a person afloat in water and prevent drowning.

   救生圈

   • The crew threw a lifesaver to the passenger who fell overboard.
   • Every boat must carry at least one lifesaver for emergencies.
   • He grabbed the lifesaver and swam toward the struggling child.

   同义词life buoylife preserverlife ring

3. Helpful person or thingB1informal

   A person or thing that provides crucial assistance or relief in a difficult situation.

   救星

   • Thanks for picking me up; you're a real lifesaver!
   • This coffee is a lifesaver on such a tiring morning.
   • Her advice was a lifesaver when I was stuck on the project.

   同义词angelblessingboongodsendgood samaritanrescuersaviorsaviour