concentrate的固定搭配有：be concentrated in/at something （使）集中于，concentrate (something) on something 把注意力集中于，全神贯注于。
导读：一日一词：concentrate 及其派生词
★ concentrate
v.
①(使)聚集于;使浓缩
Italian industry is concentrated mainly in the north.
意大利的工业主要集中在北部。
②专心;集中(注意力、思想等)
When we miss a nights sleep, we find it hard the next day to concentrate and learn mew information.
当我们一晚上没睡觉时，就会发现第二天很难集中精力学习新的知识。 2017北京
▲ concentrate (sth) on (doing) sth
专心于;全神贯注于
We must concentrate our efforts on Improving education.
我们必须集中精力改进教育工作。
When you concentrate on one task you can get it done faster and better.
当你全神贯注于一项任务时，你会完成得又快又好。
★ concentrate n. 浓缩物;浓缩液:
orange lice concentrate
浓缩橙汁
★ concentrated adj.
浓缩的;聚集的;全神贯注的
