英语词汇“nigrescent reason?”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	nigrescent reason?
释义	nigrescent reason? 嘴唇颜色比较暗；发黑的原因？
随便看	prima liability primal integration primalism primalities primality primality test primality testing Primality Testing in Polynomial Time primal linear program primal linear programming primal lower nice primally primal map primal-music primal nonlinear decomposition primal objective function primaloft primal optimization primal parents primal parts primal phantasy primal problem primal program primal scene primal scream