假设 Jack 是 10 岁,短发,1.5m, 50kg; 而 May 是 12 岁,长发,1.6m,45kg。请运用学过的句型介绍和比较一下他们的特征。Jack and MayI have two good friends. They are Jack and May. He is ten. He has short hair. He is 50kg now. And May is a beautiful girl. She has long hair. She is two years older than Jack. She is 12 now. She is taller than Jack. She is 1.6m. But Jack is heavier than May. May is 45kg. They are lovely students. I like them.