—— 请按键盘 空白键 开始游戏 ——

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
煤炭一直是工业的支柱,通过创新,它可以继续发挥作用。
Profitability and purpose are not mutually exclusive—they are increasingly interdependent.