Ccsso
abbr. common channel signaling switching office 共路信令交換局; Council of Chief State School Officers 重點州學校管理者委員會
??? 情景例句
I cannot walk at that pace.
我不能以那種步速行走。
That's bullshit!
聽你在放屁！
Yes, I'm afraid I do.I may come later.
是的，恐怕我必須做。我可以晚一點去。