Cis
[計] 中央信息系統(tǒng), 字符指令系統(tǒng), 計算機信息服務, 用戶信息系統(tǒng)
??? 情景例句
What are you working on?
你在做什么？
Who are you?
你是誰？
It's between the post office and the hospital.
它就在郵電局和醫(yī)院之間。