Smoking is addictive, and causes cancer, But the point I most want to emphasize is that it damages the health of those around you.
吸烟会上瘾,会引发癌症。但我最想说的是,吸烟同时也有损你的健康。
that given a planet only approximately like our own, life is almost certain to start.
如果设想有一颗行星和我们地球的情况基本相似,那几乎肯定会产生生命。