Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/cb321903885da9743258bdeb4146b58a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 sulphurous acid英英字典_sulphurous acid剑桥英语解释_sulphurous acid柯林斯英文解释_淳朴汉英词典
1. N an unstable acid produced when sulphur dioxide dissolves in water: used as a preservative for food and a bleaching agent. Formula: H2SO3 亚硫酸 (Systematic name sulphuric(IV) acid)