美国的风力发电量位居世界首位。

America is number one in wind power.

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不少重要产品产量跃居世界首位。

The output of many major products comes first in the world.

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每年约有八百多次龙卷风席卷美国，居世界首位。

About800 twisters sweep through the US every year, more than anywhere else in the world.

youdao

每年约有八百多次龙卷风席卷美国，居世界首位。

About800 twisters sweep through the US every year, more than anywhere else in the world.

youdao