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

Shout and run up and down in the hall, hope the security will come and talk with him.

在大堂里大叫着跑来跑去，希望把保安招来，好跟他说说话。

youdao

Shout and run up and down in the hall, hope the security will come and talk with him.

在大堂里大叫着跑来跑去，希望把保安招来，好跟他说说话。

youdao