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
Oh, it's going to be all right.
不会有问题了。
No, she isn't.
不，她不是。
Oh, I usually walk.
噢，我常走着来。