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。

《柯林斯英汉双解大词典》

Police had to erect barriers to keep crowds back.

警察只得设立路障来阻截人群。

《牛津词典》

The dead marshal jerked spasmodically as the back of his head blew out, but the safety belt kept him erect in the chair.

被打死的警察后脑勺开了花，他的身体还在断断续续地抽搐，却无法挣脱安全带的束缚挺直。

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The chair will help keep the rest of the back and neck erect and decrease your chance of hunching forward, which can cause spasms in the back and neck and headaches.

FORBES: Magazine Article

The chair will help keep the rest of your back and neck erect in order to decrease your chance of hunching forward, which can cause spasms in the back and neck and lead to headaches.

FORBES: The 10 Best Exercises To Do At Your Desk

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