copperas的翻译，读音
英/'kɒpәrәs/
释义：
n. 绿矾
[化] 绿矾; 水绿矾; 皂矾(天然结晶硫酸亚铁)
n. Green vitriol, or sulphate of iron; a green crystalline
substance, of an astringent taste, used in making ink, in dyeing black,
as a tonic in medicine, etc. It is made on a large scale by the
oxidation of iron pyrites. Called also ferrous sulphate.
[化] 绿矾; 水绿矾; 皂矾(天然结晶硫酸亚铁)
n. Green vitriol, or sulphate of iron; a green crystalline
substance, of an astringent taste, used in making ink, in dyeing black,
as a tonic in medicine, etc. It is made on a large scale by the
oxidation of iron pyrites. Called also ferrous sulphate.