过不了40年原始森林将所剩无几。

Within 40 years there will be no virgin forest left.

《柯林斯英汉双解大词典》

2000万年前，爱达荷州不像现在这样干旱。确切地说，它那时温暖潮湿，生长着茂密的原始森林。

Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primordial forest.

《柯林斯英汉双解大词典》

昨天，追溯到320万年前的原始人骨架重建“露西”首次亮相。

The early human skeleton reconstruction "Lucy" dating back 3.2 million years debuted yesterday.

youdao