Hello, everyone! My name is Bobbi and I am from Mars (火星). I am an alien (外星人) to you, Last week, I went to the earth in my spaceship. I met some earthmen there. You look different from (与……不同) us. You are not green and you have got only two hands. But I like you because you are so nice. One day, I hope (希望) you can come to Mars and we can be friends.