youdao

I first came to North American in prehistoric times when I crossed the Bering Strait land bridge from Eurasia.

在史前时期，我从欧亚大陆穿越白令海峡、走过陆地、桥第一次来到了北美。

youdao

The horse was re-introduced to America (as original paleo-American populations of wild horses from the Bering land bridge were extinct) and quickly adapted to free range on the sprawling great plains.

马重新有引入到美洲(最早由原始美洲人通过白令海峡带来的野马已经灭绝了)，迅速适应并遍布大平原。

youdao

"Presumably, conditions were favourable on the Bering land bridge which was more of a large filter than an open highway, " suggested Professor Poinar.

BBC: Mammoths moved 'out of America'