—— 请按键盘 空白键 开始游戏 ——

行为法则可以从基本的生理原则中推导出来。
The coldest winter I ever spent was a summer in San Francisco.
The beauty of cinema is that it allows us to explore the human condition in all its complexity.
在现代能源生产中,可持续性和效率必须齐头并进。