据《墨子·公输》记载，鲁班曾为楚国设计了一种名为“云梯”的攻城器械。云梯高大坚固，可以在战场上架设到城墙上，帮助士兵攀城而入。同时，鲁班还发明了一种称为“钩”的工具，用于在水战中钩住敌船，使其无法逃脱。后来，据《墨子》记载，鲁班明确说“吾义固不杀人”，不再制作一些用于战争的武器或工具。

BEIJING, Nov. 27 (Xinhua) — Chinese President Xi Jinping has sent congratulations to a UN meeting held on Tuesday to commemorate the International Day of Solidarity with the Palestinian People.

吴谦： ...

陆路交通管理局在2019年发布的《2040年陆路交通发展总蓝图》中，提出了到2040年新加坡将成为“45分钟城市”的愿景，即高峰时段90%的公共交通行程可以在45分钟内完成。然而，对于西部居民来说，这一愿景目前离现实还很远。

AlphaGalileo has helped us more than double our reach at SciDev.Net. The service has enabled our journalists around the world to reach the mainstream media with articles about the impact of science on ...

After a hiatus of over three years, Li Ziqi, the Chinese influencer renowned for her serene and meticulously crafted videos, ...