如何用英语礼貌地说"混血儿"? 刚才我给一个老外翻译中国人说的话,把混血儿翻译成"mixed-bl

Mixed 即可,不用带blood。

He is mixed Chinese and American.

他是中美混血。

或 His mother is Chinese and his father is American.

他的母亲是中国人,他的父亲是美国人。