桔子: tangerine, also written...
素: raw silk, white, plain, unadorned, vegetarian (food), essence, nature, element, constituent, usually, always, ever...
沉闷: oppressive (of weather), heavy, depressed, not happy, (of sound) dull, muffled...
合: close; shut; be equal to; add up to; join...
谈判: to negotiate, negotiation, talks, conference...
