The total number of shared bikes, which are easy to rent through smartphone apps, is increasing rapidly.

共享单车的数量正不断增加，人们通过智能手机中的应用软件就能轻松租借。

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Shared bikes, which are environmentally friendly, have become quite popular among big cities in China since last April.

从去年4月开始，环保的共享单车在中国的大城市中已经相当流行。

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Ms. Goldsmith says the city has 1, 200 miles of bikeways, but many of those are along busy thoroughfares on which cars and bikes compete for space.

高斯密斯说，洛杉矶有1,200英里长的自行车道，但很多都在繁忙的干线道路旁，汽车和自行车争道现象严重。

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It will hopefully also encourage people to use fold-up bikes which are a massive advantage for us for travelling on the train itself.

BBC: Oxford Railway Station introduces bike scheme

And it goes without saying that we wouldn't be seen dead on those ridiculously small bikes popular with teenagers, which are designed for performing undignified tricks.

WSJ: An Urban Cyclist's Criteria