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
Throughout my education.
学生时代。
My brother was discharged from hospital last week.
我兄弟是上周出院的。
I'm reading a book.
我在读书。