直上直下

Explanation: ① up and down consistently. ② from top to bottom, from head to toe. ③ described as steep. 　　Source: "Zhu book" volume IV divided to both sides of everything, is the end of aside, not the end of aside. Is at the end is justice, not the end of a human desire. Keep Erwu loss is that non of this rule is to not stay in one of the law also. Were a rule of a right and wrong, to govern a Yap Yap of the pathogen were one, and even all the way to push the world into one state, everyone alike, this ~ the road. " 　　Examples: ② Ming Shinai "Water Margin" Official Road next to the sixty-seventh back, I saw a big fellow walked straight up and down relative to Li Kui. "③ the stairs ~, go bad.