Look at this photo. It's my aunt's family. This is Mary Smith. She is my aunt. She's my mother's sister. And She is my grandfather's daughter. Her husband (丈夫) is John Smith. Nick is their (他们的) son and Grace is their daughter. Nick and Grace are brother and sister, they are my cousins. They call(称呼) my mother aunt. and my father uncle. I call John Smith uncle, too(也). It's a happy (幸福的) family.