Ccsso
abbr. common channel signaling switching office 共路信令交换局; Council of Chief State School Officers 重点州学校管理者委员会
🗣️ 情景例句
My last name is Chen. C-H-E-N.
我姓陈，C-H-E-N。
An education enriches your mind.
教育能充实人的头脑。
He then changed into overalls and spent the next eight hours as a dustman.
然后换上工作服，当8个小时清洁工。