Sasd
結構化分析和結構化設計
??? 情景例句
That was a big dinner, and I'm stuffed.
晚餐真豐盛啊！我吃多了！
After dinner sit a while; after supper walk a mile.
午餐之后坐片刻，晚飯之后走一里。
I was in the kitchen cooking something and I felt the floor move.
我正在廚房煮東西，感到地板在震動。