Dtd
abbr. 文件类型定义（document type definition）
🗣️ 情景例句
My account number is ...
我户头号码是…
Don't forget to put stamps on your letter.
别忘了贴邮票。
I do not doubt that it would be possible to inject ideas into the modern world that would utterly destroy us.
向现代世界灌输一种思想以便摧毁我们人类是可能的事，对此我并不怀疑。