darken

v.变黑；变得阴暗

Daniel, Danish, Danish blue, Danish pastry, dank, dankness, dapper, dapple, dapple-grey, dappled, Darby and Joan, Darby and Joan club, dare, daredevil, daring, daringly, dark, dark glasses, dark-haired, dark-room, darkly, darkness, darky (also darkie), darling, darn, darn (also darned), darning, dart, dartboard, Darwin, dash, dashboard, dashboard (also facia, fascia), dashing, dashingly, data, data bank, data capture, data-processing, databank,