Dddc
[医][=diethylammonium diethyl dithio carbamate]二乙基二硫代氨基甲酸二乙基铵
🗣️ 情景例句
No admittance except on business.
非公莫入。
Modesty is not only and ornament, but also a guard to virtue.
谦逊不仅可增添光彩也可以维护美德。
There will only be standing room left for us next century!
到下个世纪我们就只有立足之地了。