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1.They then started migrating to what is now Europe and Asia.
migrate 迁居
People migrate to cities like Jakarta in search of work
人们为找工作而迁移到雅加达这类城市里。
2.The researchers pinpointed an area called Okavango as being the place we come from.
pinpoint 精确地找到
It was almost impossible to pinpoint the cause of death.
几乎不可能确认死因。
