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n. （卫星信息辅助的）航行; （可接收卫星信息的）航海系统
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
When work continued, one man lit a cigarette as he was working, but, finding it had a strange taste, he put it out.
随后他们继续干活，一个工人在干活时点燃了一支香烟。可是他觉得有一股怪味，他就把烟灭了。