vt.形成珍珠状
Zhang Zeduan styled himself Zhengdao.He went to study in the imperial capital in his early years.Later he transferred to painting.He held office in the Impearl Academy of Classical Learning. 张择端，字正道，东武人，幼好读书，早年游学京师，后学绘画，供职于翰林书院，其画专工界画宫室，尤擅舟车、市肆、桥梁、街衢、城郭，自成一家。
