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concentration/
kɔnsən'treɪʃən
/
1.noun [u]
(ability to concentrate) 专心
2.noun [u]
concentration on sth/on doing sth (focus) 集中于某事/做某事
3.noun [c/u]
(in one area，space) 集中
4.noun [c/u] [化]
浓度