10年后，排名前几位的城市可能会有所不同，但可以肯定的是，未来的环球城市将比以往任何时候都更强大。
In 10 years, the top cities on the index may be different, but one thing is certain: tomorrow's global cities will be more powerful than ever.
但可以肯定的是，一些最便宜的日托所位于最缺乏监管的南方，这似乎并非偶然。
But certainly, it doesn't seem to be an accident that some of the cheapest daycare available is in the least regulated south.
虽然我们不知道这其中有多少是真实的，但可以肯定的是，丝绸栽培在中国已经存在了几千年。
While it is unknown just how much of this is true, it is certainly known that silk cultivation has existed in China for several millennia.
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