英语词汇“bitumen”的读音、翻译、释义、用法及例句-留学网

词汇	bitumen
释义	bi·tu·men /bə`tumən; ˈbɪtʃʊm^ɪn/ n [U] a thick black sticky substance used for covering roads and roofs 沥青，柏油
随便看	operation operation operational operationality operationally operations operative operatively operativeness operativenesses operatives operativities operativity operator operatorless operators operator's ophthalmologically ophthalmologic,ophthalmological ophthalmologies ophthalmologist ophthalmologists ophthalmology opinion opinion

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