Wind
风
Wind helps people on Earth.
风能帮助地球上的人们。
Wind can make a lot of energy and so people can use it.
风能产生大量的能量,因此人们可以利用它。
Wind is the cheapest form of energy.
风是最廉价的能量形式。
Sometimes it is dangerous, and sometimes it is not dangerous at all.
有时风很危险,但有时它一点儿也不危险。
It is renewable forever.
风永远是可再生的。
How fast does the wind blow?
风速有多快?
Storm winds blow about 110 kilometers per hour.
暴风的时速大约是110千米。
Breezes blow about 35 kilometers per hour.
微风的时速大约是35千米。