Zhou Zuoren's understanding of some sentences in Drinking Tea will trouble the proficient people to answer their doubts. Thank you.

1, "Naizhengyi" means "just right", "Nai" means affirmative judgment, "Zheng" means just right, and "Yi" means "breaking is indispensable", so this sentence means "breaking is indispensable". Hehe, I have never seen this sentence alone. So, this sentence really landed, I'm sure.

2. "If not, it is" means "either because ...