—— 请按键盘 空白键 开始游戏 ——

The energy sector is the backbone of any economy, and its stability ensures national security.
能源的未来在于可持续性和创新。
The study of mathematics is a constant dialogue between the concrete and the abstract.
在乳制品行业领先意味着在营养、创新和环境管理方面领先。