lifesaver
lifesavernoun- (informal)a thing that saves one from serious difficulty
(非正式)省去麻烦(或困难)的东西(或物品)
a microwave oven could be a lifesaver this Christmas.
今年圣诞微波炉会省去不少麻烦。
- (亦作 surf lifesaver)(Austral./NZ)a lifeguard working on a beach
(澳/新西兰)(海滨的)救生员
考试词汇表