Dating from the Eocene Epoch, the crater is likely less than 50 million years old, but the impact bored into Proterozoic sandstones well over 500 million years old.
它形成于始新世，距今可能不到5000万年，但是撞击钻入的原生代砂岩都已经超过5亿年。
No doubt the cultural impact of the Internet epoch plays an important role in fostering integration with the global economy and ushering in the epoch of knowledge economy.
网络时代的文化碰撞对促进全球经济一体化的进程，加快知识经济时代的到来，无疑起了推波助澜的作用。
No doubt the cultural impact of the Internet epoch plays an important role in fostering integration with the global economy and ushering in the epoch of knowledge economy.
网络时代的文化碰撞对促进全球经济一体化的进程，加快知识经济时代的到来，无疑起了推波助澜的作用。
应用推荐