Rsd
abbr. 无线电科学部（Radio Science Division）
🗣️ 情景例句
My mother passed away.
我母亲去世了。
The doctor did not reveal to him his hopeless condition.
医生没有向他透露说他的病已经没治了。
There is no need to say anything to the other worker.
你没有必要跟那个工友说什么。