Ssr
abbr. 苏维埃社会主义共和国（Soviet Socialist Republic）；二次监视雷达（Secondary Surveillance Radar）；小型潜艇反应堆（Small Submarine Reactor）
🗣️ 情景例句
I hope Grandpa's going to like living with us.
我希望爷爷喜欢和我们住在一起。
Only certain people are permitted to enter that club.
只有特定的人才被允许进入该俱乐部。
Not all sounds made by animals serve as language.
动物发出的声音不都是用作语言交际。