我们都听说了地球的温度在以令人担忧的速度上升。
We've all heard about the Earth's temperature rising at an alarming rate.
近年来，中国热水器的销量每年以25%的速度上升。
The sale number of water heater in China increased 25 percent per year.
有个朋友刚好发过来一份传真，说地球的温度正以每十年1.9度的速度上升。
The fax said that the earth is warming at 1.9 degrees each decade.
有个朋友刚好发过来一份传真，说地球的温度正以每十年1.9度的速度上升。
The fax said that the earth is warming at 1.9 degrees each decade.
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