Leonard tilted his chair back on two legs and stretched his long body.

伦纳德把他的椅子向后斜着撑在两条脚上，然后舒展他修长的身躯。

《柯林斯英汉双解大词典》

Some walked on two legs; some walked on four.

有些生物两只腿走路，有些四只腿走路。

youdao

This manual fixation—an indirect by-product of walking upright on two legs—has helped yield numbers in most cultures, but not all.

作为用两条腿直立行走的间接副产品，对手的过分关注帮助大多数文化产生了数字，但并非所有文化都是如此。

youdao

It is more like a human. It walks on two legs instead of four.

VOA: special.2010.05.02

He wants to use poetry to stand on his own two legs.

他希望借助诗歌顶天立地。

耶鲁公开课 - 现代诗歌课程节选

It would have been a meat-eater, walking on two legs about the size of a large cow, with a tail.

BBC: Dinosaur 'fills fossil record gap'

It ran around on two legs 180 million years ago, at the height of the geologic period known as the Jurassic.

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For example, there was very little understanding of how a human walks on two legs, and to utilize those principles to create a mechanical model.

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