毕竟，根据目前的排放量和预期寿命来看，每少生一名英国儿童，非洲撒哈拉以南地区就有30余名妇女能养育一个孩子，同时仍可保证地球环境更洁净。
After all, based on current emissions and life expectancy, one less British child would permit some 30 women in sub-Saharan Africa to have a baby and still leave the planet a cleaner place.
南极的洁净空气扇区(这个区域基本上没有任何空中，地面交通工具，甚至连行人都没有)被认为是地球上空气最干净的地方。
The air sampled from the South Pole's clean air sector (a zone where air traffic, land vehicles, and even foot traffic is strictly limited) is touted as the cleanest air on Earth.
地球不该是黑色的，让天空湛蓝，河流洁净，花儿娇艳！
Earth is black, dont let the sky was crystal clear, the river clean, delicate and charming flowers!
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