Stand reasonably erect, your arms hanging naturally.

尽可能站直，双臂自然下垂。

《柯林斯英汉双解大词典》

Several pine trees stand erect on the hillside.

几棵青松挺立在山坡上。

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I might write pages on the importance of learning very early in life to gain that point where a young boy can stand erect, and decline doing an unworthy act because it is unworthy.

一个少年要能挺得起腰，拒绝做不应该做的事，就因为这事不值得做。我可以写上好几页谈谈早年培养这一点的重要性。

youdao

The moral of it all is: keep cool, stand erect, and wear a kindly face.

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" Joe and his family were in "one half of the attic consisting of three rooms, which were so low that a person of medium height could not stand erect a filthy, foul-smelling home.

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"For the moment, investors are seeking refuge in U.S. government bonds, and other paper currencies, but they will inevitably crumble also, and only gold will stand erect, the cynosure of shipwrecked investors, " writes Dines like an archetypal gold bug.

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