gǔ / jí / zhōng / de / liǎng / hé / tōng / cháng / zhǐ / huáng / hé / yǐ / nán / hé / yǐ / běi / de / dì / qū古籍中的两河通常指黄河以南和以北的地区。In ancient texts, 两河 usually refers to the areas south and north of the Yellow River.