什么是长龙?8个?10个15个?

简介：Holding up the emperor's unique yellow-covered umbrella, under the heavy protection of civil servants and generals, and the elite white-armored soldiers of the two yellow flags, Huang Taiji came to a slightly raised small slope less than two miles away from the south gate of Tongzhou Old City and sat down. On the horse, he looked far into the distance and carefully observed the city defense of Tongzhou and the number of defenders.