Ssb
abbr. 太空科学委员会（Space Science Board）；选征兵役局（Selective Service Board）
🗣️ 情景例句
How's that?
那怎么成呢？
It makes no difference.
没关系。
It later became apparent that rabbits were developing a degree of resistance to this disease,
后来，明显看出，兔子对这种疾病已产生了一定程度的免疫力，