他们把搜索锁定在哺乳动物上，因为哺乳动物的身体跟人类的身体功能非常相似——而且特别把搜索锁定在那些富裕国家里与人共同生活或在人周边生活的哺乳动物上。
They limited their search to mammals, whose bodies work much like humans' do-and, specifically, to those mammals living with or around people in the rich world.
如果你是我的公司里的一名猎头，我给你布置了一项搜索任务，然后你在大把的候选人中最后锁定两个或三个人选，那我会炒了你。
If you worked as a headhunter in my firm, and I assigned you a search, and you limited your entire universe of candidates to just two or three, I'd fire you.
然而，对于本地索引扫描，需要锁定的分区首先要做索引搜索并发现匹配。
However, with local index scans, a partition needs to be locked first to do the index look-up and find a match.
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