Yà / lún / shì / wǒ / de / měi / guó / tóng / xué / , / tā / zhōng / wén / shuō / de / tè / bié / liú / lì / 。亚伦是我的美国同学,他中文说得特别流利。Aaron is my American classmate, and he speaks Chinese very fluently.