翻译英语“.清朝曾经有过几次可以了解世界的渠道和机会，可惜的是当时的皇帝们都错过了”

The qing dynasty had several opportunities and channels to know the world,but it was a pity that the emperors at that time all missed them.

There have been a number of the Qing Dynasty can understand the world of channels and opportunities, it is a pity that at the time of the emperor were missed

The qing dynasty had several can understand the world's channels and opportunity, unfortunately when emperors were missing。绝对正确

The qing dynasty had several opportunities to know the world,but the emperors missed it.