Xanthogenamide
乙黄原酰胺
🗣️ 情景例句
What made you decide to study Economics?
你为什么决定修读经济学？
Rear sons for help in old age; and store up grains against famine.
养儿防老。
This ran on an 'operating system' called DOS, produced by a then small company named Microsoft.
这种电脑采用了一种被称为磁盘操作系统（DOS）的工作程序，而这种程序是由当时规模不大的微软公司生产的。