Wind
風
Wind helps people on Earth.
風能幫助地球上的人們。
Wind can make a lot of energy and so people can use it.
風能產生大量的能量,因此人們可以利用它。
Wind is the cheapest form of energy.
風是最廉價的能量形式。
Sometimes it is dangerous, and sometimes it is not dangerous at all.
有時風很危險,但有時它一點兒也不危險。
It is renewable forever.
風永遠是可再生的。
How fast does the wind blow?
風速有多快?
Storm winds blow about 110 kilometers per hour.
暴風的時速大約是110千米。
Breezes blow about 35 kilometers per hour.
微風的時速大約是35千米。