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重点讲解：
1.on the rise在增加
Half the population uses some sort of dietary supplement, and that figure is on the rise.
有一半儿的人吃一些食物增补剂，并且这个数字还在增加中。
2.laid the blame on 归咎
Several experts have laid the blame on global warming, which has hit the country harder than most.
几个专家已把此归咎与全球变暖,蒙古为此遭受严重损失。
