darkening颜色: pigment; dyestuff变: become different; change暗: dark; dim; dull发暗: obfuscation颜色发暗的: dining-room下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:（颜色）变暗；发暗，即可在微信中查询翻译
