The therapist and other experts observe the interaction through the two-waymirror while cameras and microphones record everything.
治疗师和其他专家通过双向镜观察互动过程，同时摄像机和麦克风记录下所有细节。
2
For the researchers observing the interaction through a two-waymirror in an adjoining room, this small gesture is an encouraging sign.
对于隔壁房间内通过双向镜观察互动效果的研究人员来说，这个小举动是一个令人鼓舞的迹象。
3
Liane Willey watched from behind a two-waymirror as doctors at the University of Kansas performed a series of psychological tests on her 5-year-old daughter.