Rose and Amy are twin(双胞胎) sisters. They are 11 years old. They look almost the same(看起来一样). But Rose is taller and heavier than Amy. Amy is 156 cm. She's 3 cm shorter than her sister. Rose is 48 kg. She's 3 kg heavier than her twin sister. They usually go to school by bike. They both like playing ping-pong and watching TV. Rose is going to be a ping-pong player and Amy is going to be a teacher in the future. They study together and help each other every day.