我每个星期把一部分工资存起来准备买辆自行车。
这些自行车大部分销往欧洲和中国，在这些地方自行车已经成为了人气爆款。
Most were sold in Europe and China, where the bikes already have exploded in popularity.
这是一台连接到自行车上的空气净化机，是雾霾净化项目的一部分。
It's an air cleaning machine connected to a bicycle and is part of the Smog Free Project.
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