词汇	blue-billed duck
释义	blue-billed duck n.蓝嘴硬尾鸭
随便看	inorganic filling system inorganic film inorganic fine chemicals inorganic fireproof paint inorganic fire retardant paint inorganic flame rctardant inorganic flame retardant inorganic flame-retardant inorganic flame retardants inorganic flocculant inorganic flocculants inorganic flocculent Inorganic floeculant inorganic fluoride inorganic fluorides inorganic fluoride wastewater inorganic flux inorganic form inorganic formed substance inorganic form of society inorganic forms of nitrogen inorganic formulation inorganic foulant inorganic fouling inorganic frame retardant