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
Thank you.
谢谢你。
Don't bother.
不用麻烦了。
Though he was reluctant to do so at first, we eventually persuaded him to take us.
一开始，他很不愿意，但经劝说，终于同意了。