1. The World‘s Happiest Cities Why they are so happy and we Chinese’s cities are so sad ? 為什麼東方的城市都排不進去，我們為什麼過的那麼的不快樂 ? Click Click Pps Series

48. 1. Rio de Janeiro, Brazil Popular perception of the city is infused with images of starry-eyed youngsters dancing into the dusk, backed by mountains and dark sea. Not far from the truth for a city that's home to the annual Carnaval festival.

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