白令海峡

The Arctic Ocean is considered by some to be a northern part the Atlantic Ocean.

北太平洋位于阿拉斯加州和西伯利亚之间的部分；通过白令海峡与北冰洋相连。

Eurasia comprises the whole of the northern part Asiatic land - mass , from Portugal to the Bering Strait.

欧亚国占欧亚大陆的整个北部， 从葡萄牙到白令海峡。

But was there one major wave of migration across the Bering Strait into the Americas, or several?

但是有没有一次或几次大移民浪潮是穿过白令海峡到达美洲的呢？

From this evidence it was deduced that there had been three major waves of migration across the Bering Strait.

从这个证据可以推断，横跨白令海峡的大型移民潮曾经有过三次。

Recent evidence favors a rival to the long-standing theory that the Americas were colonized 11,000-12,000 years ago by people migrating south from Beringia along a midcontinental ice-free corridor.

最近的证据支持了一个与长期存在的理论对立的观点，该理论认为，在1。1万至1。2万年前，美洲是由从白令海峡沿中大陆无冰走廊向南迁移的人殖民的。