Rais
abbr. 辐射源监管信息系统；红外反射-吸收光谱学（Reflection-Absorption Infrared Spectroscopy）
🗣️ 情景例句
Now I want to ask you a few questions, if you don't mind.
如果不介意的话，现在我想问你几个问题。
What will you have for breakfast tomorrow morning?
你明天早上早餐将有什么？
and the existence of underwater features of considerable magnitude.
水下特征差异极大。