帮我解一道题目,刚才我看他下楼去了（翻译成英语）I saw him ______ _____ just now
问题描述：
帮我解一道题目,刚才我看他下楼去了（翻译成英语）I saw him ______ _____ just now
答
设长为x,宽为y，依题意有 x y=10 xy=24 解得x=6 y=4 所以，围城的长方形长是6厘米，宽是4厘米。 4*6=24 把20厘米围成边长是4cm和6cm
答
went downstairs
答
I saw him go downstairs just now.
答
going downstairs
see sb doing sth 的句式