Conventional wisdom says our earliest ancestors first stood up on two legs when they moved out of the forest and into the open savannas.

传统观点认为当人类最早的祖先最初从丛林迁移到平原时，开始用两条腿站立。

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Cut the legs off your jeans and cut them open along the inside seam. Lay them flat on the table.

将牛仔裤的裤腿剪下，沿裤缝线剪开，平放在桌子上。

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It’s lonely compared with downtown. There is an occasional tricycle (read Second World War-style motorbike and sidecar), the odd open-top truck packed with squealing goats, legs tied together.

与市中心比起来这里车很少，有时能看见二次大战时那种带边斗的摩托车。

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That was shortened to the Scissor Sisters, and their logo shows wide open legs on the end of a pair of scissors.

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Tim Corcoran of Warwick, Rhode Island, said his sister-in-law, Celeste, had lost both legs in the attack and that her 18-year-old daughter's legs had been "ripped open" by shrapnel.

WSJ: Doctors Treating Boston Marathon Victims Describe Injuries

One kicked him so hard with its hind legs that it split his hand open.

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