Hello, we are cactuses*. We come from the desert（沙漠）, but now you can see us all over the world*. We are not afraid（害怕） of cold and dry. Look, there are spines（刺） all over our bodies. So don’t touch us! The spines can help us stop the water from evaporating.*
　　We can grow very tall, more than* 10 meters. And our flowers are very beautiful. They are white, yellow or pink. Do you want to make friends with us?