lifeguard [ˈlaɪfgɑ:rd]

例句:

• Lifeguard Edmir Nicacio Lopes Junior was just steps away when a woman was attacked.
  来自BBC
• There is always a lifeguard to ensure that no one comes to any harm.
  总是有一个救生员在场以确保无人受到伤害。
  
• I applied for a job as a lifeguard at the community pool.
  我申请了社区游泳池的救生员工作.
  
• I could pay you back out of my lifeguard salary.
  我可以从我当救生员的薪水中拿出来还你.
  
• The tall lifeguard stand threw a short shadow.
  来自NEWYORKER
• Where no lifeguard is on duty, the FCO advises against swimming.
  来自THETIMES