Bitumen
01
沥青, 天然沥青
any of various naturally occurring impure mixtures of hydrocarbons
语法信息
有生性状态
无生命
形态构成
简单词
不可数
复数形式
bitumens
02
沥青, 柏油
a thick, black or dark brown substance made from petroleum that is used to make roads and roofs
沥青, 天然沥青
沥青, 柏油
