Pcdos
n. IBM公司的磁盘操作系统
🗣️ 情景例句
Hello, Air China Flight Reservations. May I help you?
喂，你好，中国航空公司订票处，需要帮忙吗？
He is pinned down by the demonstrators.
他被示威的队伍给钉住了。
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。