You will always have at least one camera in a scene, but you can have more than one.

你始终至少有一个相机在场景中，你也可以有多个。

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They were caught on camera by a passer-by, and at least one other person who can be seen filming or taking pictures on his camera phone while the video is filmed.

视频是由一名路人用照相机拍摄到的，画面中还能看到另外一个人也在用手机同时摄影或者拍照片。

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That’s especially true for the rear camera, since at least the front one can be used for video chatting.

特别是后置摄像头，因为前置摄像头至少还可以用来视频聊天。

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Flickr tracks the percentage of members of its photo-sharing community who have uploaded at least one thing from a particular camera every day for the past year.

FORBES: Shopping For A Digital Camera? Check Flickr First

At least one leading connected TV vendor plans to change this by integrating a camera module directly into its TVs.

FORBES: Panasonic: Connected TVs With Built-In Cameras On Way