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。
When you have finished your experiment, please tidy the lab and put everything back in the cupboards.
做完实验后,请你们把实验室整理好,并把所有的东西放回器皿柜。