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。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如,很多公司向图书馆借阅科技书籍时感到很困难,