坐姿提醒器：采用人体工学设计，戴在耳朵上，舒适，自然。

Sitting reminded: use of ergonomic design, wearing the ear, comfortable and natural.

youdao

坐姿提醒器：采用人体工学设计，戴在耳朵上，舒适，自然。

Sitting reminded: use of ergonomic design, wearing the ear, comfortable and natural.

youdao