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.

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BEIRUT, Nov. 23 (Xinhua) -- At least 20 people were killed and 66 others injured on Saturday in an Israeli airstrike on a residential building in the Lebanese capital Beirut, Lebanon's Ministry of ...

— China stands ready to strengthen communication and coordination with Brazil at the United Nations, BRICS and other multilateral mechanisms, support Brazil's presidency of BRICS next year, promote ...

“The smartest people in the world work for someone else——世界上最聪明的人总在为别人工作。”这是“开放式创新之父”Henry Chesbrough最为著名的观点之一。 2016年，Plug ...

People work at the site of a rocket attack from Lebanon, in Shfar'am, northern Israel, on Nov. 18, 2024. A woman was killed and 10 others wounded in a rocket attack in northern Israel on Monday, ...

On October 1st, 1949 a grand ceremony was held in Beijing to mark the founding of the People's Republic of China. Although ...