Smms
abbr. seromucous maxillary sinusitis 浆液粘液性上颌窦炎; switched multimegabit data service 交换式多兆比（特）数据业务
🗣️ 情景例句
Why shouldn't I run?
为什么我不该竞选？
Union is strength.
团结就是力量。
We seem to be three packages short.
好像少了三大箱。