至于到底是因为那时节水里来海里去的人们囊中羞涩，还是对那玩意儿信心不足，而更信赖软木救生衣，我不得而知；
Whether sea-going people were short of money about that time, or were short of faith and preferred cork jackets, I don't know;
救生圈，救生衣：一种有浮力的装置，如软木或聚苯乙烯圈，用来使人能浮在水中。
A buoyant device, such as a cork or polystyrene ring, for keeping a person afloat in water.
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