Pcdos
n. IBM公司的磁盤操作系統(tǒng)
??? 情景例句
Hello, Air China Flight Reservations. May I help you?
喂，你好，中國航空公司訂票處，需要幫忙嗎？
He is pinned down by the demonstrators.
他被示威的隊伍給釘住了。
Sometimes we aren't able to get into every building because there are too many steps.
有時我們并不能進每棟樓房，是因為樓梯太多了。