1. And to ensure the populations were "pure", the study was confined to groups that were in their present locations as of 1492, before the first major movements from Europe began — in effect, a genetic photo of the world when Columbus sailed f
    为了确保种群的"纯正"，这项研究将对象限定于其目前的生活区域仍与1492年以来相同的那些群体，即在来自欧洲最初的大规模迁移之前。这实际上就是一幅真实的哥伦布驶向美洲时期的世界人口基因分布图。

2. I had my photo taken by my brother.
    我要哥哥帮我照相.

3. I got them developed in the photo shop near the underpass.
    我把底片拿去地下道旁的那家照相馆洗,