The fact is that every writer creates his own precursors. His work modifies our conception of the past, as it will modify the future.

国家是人类社会中最重要的机构，其强弱是社会成败的关键决定因素。

你有没有为将来打算过呢？

如果没有了解植物生长规律的农民，最先进的温室也毫无价值。