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 ...
科恩星期天一整天都在家无所事事。On Sunday Cohen lay around the house all day.娜奥米以前每个星期天都去格兰维尔的教堂做礼拜。Naomi used to go to church in Granville every Sunday.到星期天他又会上那儿去。He's going to be up there again come Sunday....
Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.对甘油催化氢解制取1, 2- 丙二醇效果最好的是含铜的催化剂....