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
What's your occupation?
你的职业是什么？
The student has made tremendous progress.
这个学生进步非常快。
Almost immediately he began to complain about the weather,
但紧接着他就开始抱怨那里的天气了。