The ape shoulder is good for hanging from a tree, but when our ancestors started walking on two legs, the shoulder started to change.

猿猴的肩膀有利于其在吊在树上，但是当我们的祖先开始以两条腿走路以后，猿猴的肩膀也开始发生变化。

youdao

As time passes the swine adopt human traits soon wearing clothes and walking on two legs.

时间推移，猪采用了人类的特征，很快就穿上衣服，用两条腿走路。

youdao

It was walking on two legs like a human and looked about 150 centimetres tall," said Takahashi.

它像人一样，用两条腿走路，身高约1米5。

youdao

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'

Was it walking on two legs or four?

UNESCO: MEDIA SERVICES