Ssb
abbr. 太空科学委员会（Space Science Board）；选征兵役局（Selective Service Board）
🗣️ 情景例句
What did you say? I didn't quite get that.
你说什么？我没听清楚。
I bought it at half price.
我花了半价买来的。
What's the time?
几点了？