Lìshǐ shàng, liǎng gè mínzú chángjí tōnghūn, cùjìn le wénhuà rónghé.
Historically, the two ethnic groups intermarried over a long period, promoting cultural integration.
Zài yīxiē chuántǒng shèhuì zhōng, bùtóng jiēcéng zhī jiān bù yǔnxǔ tōnghūn.
In some traditional societies, intermarriage between different social classes was not permitted.
