So his father named Cao Xueqin " Zhan Ge'er, " with the character " Zhan" consisting of a " rain" radical on top and three dots of water on the bottom, implying abundant rain.

于是他父亲给曹名叫“湛歌儿”，其中“湛” 字由上首“雨” 首和下三点水组成，寓意雨水充。

Zhang Taiyan has four daughters, and the names he gave to his four daughters are quite strange, all using very rare ancient characters, and those are the characters that are composed of four radicals.

张太炎有四个女儿， 他给四个女儿名字都挺奇怪，都是用非常罕见古字，而那些就是由四个首组成字。