verb · to direct one's attention, thoughts, or efforts toward a specific activity or point

你应该集中精力在学习上。

verb, adjective · existing in a state where things are gathered together or clustered in high density

人口主要集中在沿海大城市。

verb · to bring together separate elements into one location or under unified control

所有的权力都集中在中央政府手里。