Block out this unimportant detail at the top of your picture.在底片上把图像上部的这个不重要的细节涂抹掉.Block out the bottom of this picture when it is printed ; the balance of the page will be better.洗印的时候, 压掉照片的底部,这样看起来平衡效果好些.The standard ...

遮住，遮挡…使不被印出来，画出…的略图， 打草样...

block out的音标：block out的英式发音音标为：[blɔk aut]block out的美式发音音标为：[blɑk aʊt]...