求翻译：Live View and D-Movie users can rejoice, because with the D7000, face-priority AF is now faster and more powerful than ever. Up to 35 people can be. For moving subjects such as pets, subject-tracking AF keeps them in focus. Normal-area AF is recommended for pinpoint focus and wide-area AF for handheld shooting. All are effective both for Live View shooting and movie recording.是什么意思？

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