Back And Head Erect的意思|示意

It is crucial that the upper back and neck are held in an erect position to give support for the head.

重要的是：上背和颈部要挺直以支撑头部，这一点很重要。

She held her head erect and her back straight.

她昂着头，把背挺得笔直。

But her back was erect and her head was high as she nodded to them.

不过她的腰背笔直，她向她们点头招呼时脑袋也仍然高昂着。

Keep your posture straight and erect. Your head should be up, your back straight, and shoulders level.

保持您的姿势挺而直，抬起头，挺直腰，双肩水平。