慢速英语:Classrooms in Boston to Get Different Kind of World Map

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短语讲解：

1.In the United States and other countries, schoolchildren have long learned from one kind of world map.

learn from 向…学习，从…获得[吸取]; 效法
例句：We should learn from advanced workers.
我们要向先进工作者学习。

2.But map experts and other people say the Mercator projection should not be used in schools

be used in 被用于
例句：This method can be used in conjunction with other methods.
这种方法可以和其他方法结合使用。

3.In fact, China is about four times larger than Greenland.

in fact 事实上; 实际上，其实
例句：You have to admit that you are, in fact, in difficulties
你不得不承认，你事实上是陷入了困境。