bicycles security
自行车安全
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I want to talk about an area of security, or safety-bicycles.
我想谈谈安全方面的问题，尤其是安全骑行。
youdao
Bicycles, motorcycles, cars, etc, when parked, the security of them is a concern. It is annoying when the parking space is possessed by others.
自行车、助动车、摩托车、汽车在停放时防盗是令人关注的问题，停放的车位被人枪占是烦恼的事。
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