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vt.
集中；聚集，集結[O][（+on/upon）] We must concentrate our attention on efficiency. 我們必須把注意力集中在效率上。 Our population is concentrated in the big cities. 我國人口集中在大城市裡。 vi.
集中；聚集，集結[Q] n.
濃縮物；濃縮液[C][U]
vi.
全神貫注; 集中 concentrate! you're not paying attention! 專心點！你走神了！ to concentrate on sth./sb./doing sth. 專注於某事物／某人／做某事 vt.
集中 to concentrate one's gaze on sth. 聚精會神看某物 I concentrated all my efforts on finding somewhere to live 我盡力在找住處 n.
濃縮物 a tin of tomato/orange concentrate 一聽濃縮番茄汁／橙汁
adj.
濃縮的 concentrated sulphuric acid 濃硫酸
ph.
專心於...; 集中於 His whole attention is concentrated on the subject. 他的全部注意力集中在這個問題上面。 He is unable to concentrate his mind on academic work. 他不能全神貫注於學術工作。
ph.
全神貫注於 I must concentrate upon my work now. 我現在必須集中精力工作。
ph.
全神貫注於 I must concentrate on my work now. 我現在必須集中精力工作。
ph.
全神貫注於 I must concentrate upon my work now. 我現在必須集中精力工作。
