over-water lifesaving 游泳救生 ; 水上救生
Mercy Corps is playing a key role in emergency response efforts by providing lifesaving water, sanitation and other services to those forced from their villages and homes.
美慈发挥关键作用，在应急响应的努力通过提供挽救生命的饮水、卫生设备和其它服务那些被迫从他们的村庄和家园。
She teaches swimming, lifesaving and water aerobics.
她教授游泳、救生术和水中有氧运动。
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