求翻译：Each and every control on the D7000 has been strategically placed for streamlined operation. The exposure mode dial and release mode dial are stacked on the same axis for easier access. Two new user settings can be assigned to the exposure mode dial. The release mode dial now offers a quiet shutter release mode for near-silent operation and one-touch Live View and movie recording are now possible, thanks to a newly designed switch and button structure.是什么意思？

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