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
and we have Popo the Clown to entertain you.
我们请了小丑Popo来给大家表演助兴。
Sorrow comes unset for.
悲哀来时不需邀。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。