Nadb
abbr. National Aerometric Data Bank 全国气体数据库
🗣️ 情景例句
No, we didn't leave anything in the room.
不是， 我们没有弄丢任何东西在房间里 。
Poverty is not a disgrace,but theft is a disgrace.
贫穷不可耻，偷窃乃足羞。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。