In the camera interface, you can click a small icon at the bottom of the screen and switch between the front-facing or back-facing camera.
你可以通过屏幕方的图标按钮进行前后摄像头的切换。
At the bottom of the screen go to the Servers view, right-click in the empty list and create a new server configuration.
转到屏幕底部的Servers视图，在空的清单中单击右键，创建一个新的服务器配置。
To begin, click on the button below. As you move through the survey, please use the buttons at the bottom of each screen. Do not use your browser buttons.
请按下方按钮开始作答。在进行调查问卷的过程中，请使用屏幕底部的按键来控制调查进程，请不要使用浏览器上的按键。
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