They are riding their bicycles.

他们正在骑自行车。

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Locked indoors, unable to get on their bicycles and hang out with their friends, teens have turned to social media and their mobile phones to gossip, flirt andsocialize with their peers.

由于被锁在家里，不能骑自行车和朋友们出去玩，青少年们开始通过社交媒体和手机与同龄人闲聊、调情和社交。

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More and more Chinese are trading in their bicycles for motorbikes and cars.

越来越多的中国人把自行车换成摩托车和汽车。

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The workers use trailer devices which link to their bicycles and can carry up to about one hundred thirty kilos.

VOA: special.2009.12.04

And it aims to increase the number of children who walk or ride their bicycles to school.

VOA: special.2010.06.07

The researchers left a piece of paper on the handlebars of the bicycles while their owners were away.

VOA: special.2009.03.03

Their bicycles carry industrial-size grab-nets, rice sacks and white plastic buckets in which crabs clamber slowly.

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But during the next four years, China's oil imports will double as the Chinese give up their bicycles.

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Their bicycles were located hours after they were reported missing near that lake.

CNN: STORY HIGHLIGHTS