Ssb
abbr. 太空科学委员会（Space Science Board）；选征兵役局（Selective Service Board）
🗣️ 情景例句
Why is that?
为什么？
We're having some friends over. What are you doing?
我们打算请几位朋友来玩。你打算干什么呢？
What's it like in summer?
夏季的天气如何呢？