lifesavers
n.
救生者，水难救生员，济急的人( lifesaver的名词复数 );
例句:
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These tips may prove to be lifesavers.
这些小建议或许能救您一命.
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Surf lifesavers removed the 60 centimetre shark by hosing it with fresh water.
最后救生员用淡水围着60公分的鲨鱼洒水,才得己松口.
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Compact first-aid kits with wound wash and bandages can be lifesavers when it comes to cuts and blisters.
来自WSJ
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"We are lifesavers," Mr Sakala says simply, and he's right.
来自THETIMES
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He ripped it into pieces, which he placed on lifesavers lined up along the counter.
来自NEWYORKER