题目内容

指南针可以指示南北。A compass, zhinan zhen, ____ north and south.

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2000多年前，中国人发明了它。It was ____ by Chinese 2,000 years ago.

古代的指南针像一把汤勺。The zhinan zhen looked like a .

把它放在平滑的盘子上，当它的静止的时候，勺柄就会指向南方。When the spoon was put on a plate, its ____e could point to the south.

后来中国人用小小的钢针代替了汤勺。Then Chinese used a little to the spoon.