我们的耳机都通过专业设备测试，由专业的工程师严格筛选出来的。

Headphone professional equipment through testing, by a professional engineer carefully screened out.

youdao

我们的耳机都通过专业设备测试，由专业的工程师严格筛选出来的。

Headphone professional equipment through testing, by a professional engineer carefully screened out.

youdao