Press the manual rewind button.
按压手动倒片按钮。
If you have chosen Mode manual, then in order to play a sound you should press play button.
如果您选择手动模式，然后以播放声音您应该按下播放按钮。
Under the manual mode, press the "switch" key and then to the fully automatic mode.
手动方式状态下，按“切换”键进入全自动方式。
Press the "reset" key and to the manual test.
按“清零”键，进入手动检测。
Press the "reset" key and to the manual test.
按“清零”键，进入手动检测。
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