—— 请按键盘 空白键 开始游戏 ——

无人机行业的发展,最终是为了服务人类,而不是替代人类。
The most important political development of the last half century has been the spread of liberal democracy around the world.
国君得到了我的学说,就必然会采用。 
享受失败并从中学习。你永远无法从成功中学到东西。
The dairy industry must evolve to meet the needs of both people and the planet.