Nadb
abbr. National Aerometric Data Bank 全国气体数据库
🗣️ 情景例句
The mailman just dropped some mail in our box, Grandpa.
邮差刚刚塞进一些信件在我们的信箱， 爷爷。
Marriage is a lottery with more blanks than prizes.
结婚如同摸彩票，空票多而中票少。
Thirteen.
13岁。