To bring (oneself) into an erect posture, often as an expression of dignity or indignation.

使（自己）来到一个直立的姿势，通常用于表示尊严或愤怒。

youdao

Based on the viewpoint of biomechanics and anatomy, we expound the essentials of basical erect posture and slide moving in defence of basketball training.

从运动生物力学和解剖学等体育基础理论角度，阐述了篮球防守训练中的基本站立姿势及滑步移动的动作要点。

youdao

Keep your posture straight and erect.

保持你的姿态笔直挺立。

youdao

An erect posture may be a sign of a tough bargaining position or it may simply indicate a stiff back.

FORBES: How Savvy Negotiators Read Your Body Language

Adel hesitated, then perched on the edge of the chair, his erect posture insuring that he did not touch the back of the furniture.

NEWYORKER: Waiting