最近国外有相关研究指出，安全帽带给骑士的安全保护，似乎被过于高估了。

Recent studies indicate abroad, security from bike-helmet, seems to be too overrated.

youdao

最近国外有相关研究指出，安全帽带给骑士的安全保护，似乎被过于高估了。

Recent studies indicate abroad, security from bike-helmet, seems to be too overrated.

youdao