There's no reason they won't have a video camera located in a buttonhole, maybe even a video projector.

可以想见未来会有嵌入纽扣的摄像头，甚至是投影仪。

youdao

There's no reason they won't have a video camera located in a buttonhole, maybe even a video projector.

可以想见未来会有嵌入纽扣的摄像头，甚至是投影仪。

youdao