translation.en: So if you were there 3.3 million years ago, to hear when this girl was crying out for her mother, she would have sounded more like a chimpanzee than a human.
translation.zh: 因此，如果你处于330万年前， 听这个女孩哭喊着找妈妈时， 她听起来会更像黑猩猩而非人类。