Dtd
abbr. 文件类型定义（document type definition）
🗣️ 情景例句
Weight: eight pounds six ounces.
体重： 八磅六盎司。
My cousin is a member of a stamp club, He seems stamp collecting.
我的表兄是一个集邮俱乐部成员，他似乎很喜欢集邮。
I find young people exciting.They have an air of freedom,
我觉得年轻人令人振奋，无拘无束。