concentrate on/upon
1. 全神贯注于
I must concentrate on my work now.
我现在必须集中精力工作。
习惯用语concentrate on1.集中在； 专心于concentrate upon1.集中在； 专心于特殊用法atomizing concentrate1.浓雾剂， 乳粉canned butter concentrate1.含水分低的罐头奶油； 罐装无水奶油centrifugal concentrate1.离心法浓缩液copal concentrate1.浓柯巴树脂（颜色调节剂）dry concentrate1.干选， 风选emulsifiable concentrate（s）可乳化的浓缩物fish protein concentrate1.鱼蛋白浓缩物flotation concentrate1.浮选精矿fruit juice concentrate1.浓缩果汁gravity concentrate1.重选精矿high protein concentrate1.高蛋白质浓缩物hop concentrate1.啤酒花浓缩物［浸膏］lead concentrate1.精铅liquid coffee concentrate1.咖啡 浓缩液magnetic concentrate1.磁选精矿meat concentrate1.肉膏； 浓缩肉汤［汁］ore concentrate1.精矿protein-vitamin concentrate1.蛋白质-维生素浓缩物smoke concentrate1.熏烟浓缩液， 熏液soybean protein concentrate1.大豆浓缩蛋白volatile flavour concentrate1.挥发性芳香物的浓缩液zinc concentrate1.精炼锌zircon concentrate1.浓缩［富集］锆砂