I think we should take care of the environment, so that we have something to leave for our children.
我觉得我们应该保护好自然,以便将来能给我们的子孙后代留下一些东西。
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。