If you have a webcam or an iPhone, visit echoism.org to do this experiment with your face.

如果你有一个网络相机或者带摄像头的手机，你可以访问这个网站来做一个实验。

If you have a webcam or an iPhone, visit echoism. org to do this experiment with your face.

如果你有一个网络相机或者带摄像头的手机，你可以访问这个网站来做一个实验。