surface discolourationtarnish表面: surface; superficies; bounda ...变色: change colour; discolour肉表面变色: meat surface discolouration表面变暗: surface darkening; tarnishing表面变化: superficial alteration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:表面变色,即可在微信中查询翻译