While producing large quantities of CO2, these computers emit a great deal of heat, so the centres need to be well air-conditioned, which uses even more energy.
这些计算机在产生大量二氧化碳的同时还会排放大量热量，因此数据中心需要配备良好的空调系统，这会消耗更多能源。
The climate change we are hastening could one day leave us with forests that emit more carbon than they absorb.
我们加速的气候变化有一天可能会使森林排放的碳多于吸收的碳。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。