so they release oxygen and water vapour into the air.同时释放氧气和水蒸气
water vapour水蒸汽
A cloud is a condensation of water vapour.
云是由水蒸汽凝缩而成的。
Clouds blanket the forest,driving up the humidity and temperature.森林上空阴云密布使得湿度增强,气温上升
drive up抬高
Sunny days are driving up the temperature.
阳光明媚的日子使气温上升。
The Congo might be the richest part of Africa,刚果也许是非洲资源最丰富的地区
part of一部分
A part of this urgent task was allotted to us.
这项紧急任务的一部分分给了我们。
My inn had once been a part of an ancient ecclesiastical house.
我的客栈曾经是一个古老教会的房子的一部分。