一台洗衣机的价钱是612元,3台洗衣机要多少元钱?.F6j4a([:M;O,V
算式:提示2n7j-i0h8m+G.F6j4a([:M;O,V
答:3台洗衣机要2O8z/\(M/^6P*D.k4}元钱。.F6j4a([:M;O,V