Zài dà jiāzú lǐ, tóngbèi de háizi míngzi lǐ chángcháng yǒu yí ge xiāngtóng de zì.
In big clans, children of the same generation often share one character in their names.
Tips
culture
Family order matters in Chinese: 长辈 are older generations, 晚辈 younger ones, and 同辈 or the more everyday 平辈 your own. Many clans fix a generation character, the 字辈, that everyone of the same generation puts in their name.