短語詞組短語concentration n on sth 專心Concentration effects on equlibrium shift 濃度對化學(xué)平衡移動的影響concentration measuring on -line 濃度在線測量concentration on ground 地面濃度Concentration on performing 心理專注Concentration on the low 濃度偏低concentration on civil rights 對公民權(quán)利的專注pay more concentration on 多加濃度;支付更多的濃度axle concentration on ground 地面軸線濃度 返回 concentration on