选择任何舒适的坐姿，背部，颈部，头成一条直线。
Sit in any comfortable posture with back, neck and head in one line.
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.
让我们找一个自己最舒适的坐姿势做好。
Let us find a most comfortable sitting posture to do a good job.
让我们找一个自己最舒适的坐姿势做好。
Let us find a most comfortable sitting posture to do a good job.
应用推荐