The photo must fit absolutely precisely into the frame.
照片要绝对精确地和框架安装在一起。
2
Never simply stretch a small, low-resolution photo to make it fit your layout - doing so will degrade the resolution even further.
千万不要简单地拉伸一张小尺寸、低分辨率的照片来满足您的布局要求——这样会将您的幻灯片弄得很糟。
3
Because of the expense and difficulty of each photo taken, they became masters at getting things right the first time and being able to fit in as many people as possible into the frame.