可吸入颗粒物 kěxīrùkēlìwù breathable particulate matter Origin Definitions Defs Strokes Stroke Words Sentences Sents 可 kě adjectiveauxiliary worth worth; worthy of; used as a prefix to mean "-able" or "-worthy"吸入 xīrù verbnoun to inhale to breathe in, suck in, or absorb via suction颗粒物 顆粒物 kēlìwù particulate matter micro-particles or particulate matter (PM)