Mose people would like to work in the west, mainly because wages are comparatively high.
许多人喜欢在西方工作,主要是因为那边工资相对高些。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。