concentrate on 意思是集中精力於 可直接接名詞concentrate on sth 或接動詞ing concentrate on doing sth 或 concentrate one"s effort on sth/doing sth 例句如下： * I can"t concentrate (on my studies) with all that noise going on. 吵鬧聲不絕於耳, 我精神無法集中（於學習）. * We must concentrate our efforts on improving education. 我們必須致力於改進教育工作. * Having failed my French exams, I decided to concentrate on science subjects. 我因法語考試不及格而決心專攻理科. * This firm concentrates on the European market. 這公司把工作重點集中在歐洲市場.concentrate to後面一般加動詞,意思是專心去做某事.不知對不對,靠大家了