Whenyouwatch3DmoviesorTV，youhavetowearaspecialpairofgla...
問題詳情：Whenyouwatch3DmoviesorTV，youhavetowearaspecialpairofglasses．The3Dglassesmaketheimagesfromthescreenlookliketheyarethereintheroomwithyou．Three-dimensional，or3D，meanshavingthreedimensions（維度）:width，hei...