La verdadera literatura no tiene fronteras, no conoce límites.
如果购买普通股时工作做得正确,那么卖出它的时间几乎永远不会到来。
Innovation is the lifeblood of the petroleum and chemical industry. Only by continuous technological breakthroughs can we achieve sustainable development.
数学是一种让我们能够描述无法描述的事物的语言。