All colour fades— especially under the impact of direct sunlight.所有颜色都会褪色——尤其是在阳光直射下。As one plant fades, another comes into flower.一株植物凋谢了，另一株又会盛开。You'll need to be able to project two images onto the screen as the ...
All colour fades— especially under the impact of direct sunlight.所有颜色都会褪色——尤其是在阳光直射下。You'll need to be able to project two images onto the screen as the new one fades in and the old image fades out.你得能将两个图像投射到屏幕上，让新...