Kublai Khan welcomed Marco and his father.

元世祖欢迎马可·波罗和他父亲来中国。

Kublai Khan would even go to war with his own brother, Ariq Boke.

忽必烈甚至和他自己的兄弟阿里不哥开战。

At that time, China was ruled by the Yuan Dynasty Emperor, Kublai Khan.

那时，统治中国的是元朝的元世祖忽必烈。

When it was finally over, there was no-one left to oppose Kublai Khan.

当战争最后结束时，已经没有人可以反对忽必烈了。

The other was Kublai Khan, the Mongol warrior, who felt his life should be taken up with conquest.

另一个是蒙古勇士忽必烈，他觉得他的一生应该被征服所占据。

Kublai Khan finally died on February 18, 1294. His body was buried in a secret place somewhere in Mongolia.

忽必烈最后死于1294年2月18日。他的尸体被埋在蒙古的某个秘密的地方。

Kublai Khan also expanded the empire in the west into Europe, up to the Danube River in modern-day Bulgaria.

忽必烈还将帝国从西部扩展到欧洲，一直延伸到多瑙河，也就是今天的保加利亚。

An Italian explorer named Marco Polo wrote down the history of the Mongolian Empire while living amongst Kublai Khan's royal court.

一位名叫马可波罗的意大利探险家在忽必烈的皇家宫廷中写下了蒙古帝国的历史。

Kublai Khan, the grandson of Genghis Khan, conquered the rest of China in 1275 and caused the collapse of the Chinese Song Dynasty.

忽必烈，成吉思汗的孙子，于 1275 年征服了中国其他地区，导致了中国宋朝的崩溃。

So the Mongols, Kublai Khan, in the mid 1200s, reigned over the largest empire in history up to that point, and he had a problem.

蒙古人忽必烈在 1200 年代中期统治着当时最大的帝国，而他遇到了一个问题。