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。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。