—— 请按键盘 空白键 开始游戏 ——

Sustainability isn't an option anymore—it's a necessity for any responsible mining operation.
水产养殖的透明度不是可选项——消费者有权知道他们的食物从何而来。
每一本书都是一个待发现的世界,充满了惊喜和教诲。
"The most valuable resource we have is not oil or gas, but human ingenuity."