They are locked by the user after riding, and then unlocked by the next rider with a mobile phone.

骑行结束后，用户会将其锁定，然后由下一位骑行者用手机解锁。

youdao

That may depend on the mobile phone itself and how locked down it is.

那将取决于我们的移动电话以及它如何锁定。

youdao

Most Japanese consider their phone to be secure; if it is lost or stolen it can be locked remotely to protect the cash, credit and other valuables tied to it.

但大部分日本人认为自己的手机是安全的，因为手机丢失或被盗时可以远距离锁定以保护现金、信用卡及其他与之联系密切的重要功能。

youdao

What if access to your phone is locked with a security code or pattern?

CNN: STORY HIGHLIGHTS

With the 5MP camera, anyone can take pictures and share on social networks in seconds, even when the phone is locked.

ENGADGET: Nokia Lumia 710 now shipping, global rollout slated for 'coming weeks'

And, as Facebook is an advertising business, the Facebook Home experience will have ads integrated into it - even when the phone is locked.

BBC: Facebook��s future - ads and Android