Officer Dale Kelig uses a body camera every day.

警官戴尔·克莱格每天都要使用摄像头。

And when you're communicating with someone on camera, for example, your computer camera, body language and facial expressions are still important ways to show that you're listening.

例如， 当你通过镜头与某人交流时，你的电脑摄像头、肢体语言和面部表情仍然是表明你在倾听的重要方式。