Sitting straight means a person is confident.

端正坐着意味着一个人很自信。

youdao

Sitting straight means a person is confident.

端坐表明一个人是自信的。

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Standing and sitting straight makes you look confident and full of energy.

挺拔的站姿和坐姿使你看起来充满精力和自信。

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I think even if you're in a chair, and you're sitting up straight with good posture, maybe hands on knees.

哪怕只是坐在椅子上，坐直并保持良好姿势，也许双手放在两膝上。

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The Uprightsleeper looks like a neck brace the kind worn to immobilize the cervical spine after a traumatic injury (although it "makes no medical claims") and facilitates sleeping while sitting straight up.

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Whenever he came home, he found her in the living room, sitting up straight on the couch.

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Miller was despondent, sitting at his locker and staring straight ahead for several minutes before speaking with reporters.

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