Too much tea will brown your teeth, but it's good for your health; so what are you going to do?
茶喝多了会把你的牙齿染黄,但对你的身体去有好处。因此你会怎么办?
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。