Atang
Tang Ao
Explain the low-lying area of the hall.
This is Cheng's explanation, which has been used by many textbooks so far. Actually, "Tang Ao" is a Chu language, which means "very small pit". See the famous linguist Mr. Wang Guanghan's article "Interpretation of" Tang Ao "in A Study of Dictionary Problems.
The allusion "Zhuangzi Xiaoyao Tour": "The husband's water is not thick enough to bear the big boat; If you put a glass of water on the alcove, mustard is a boat. If you put a cup on it, it will be glue. Shallow water makes a big boat. "
For example, Wang Xianqian quoted Zhifu's cloud: "The hall is concave." Don Yang Jiong's Fu on a Floating Life: "The situation is winding and the waves are increasing, and the depressions are rising." Song Sushi's poem "He Shen": "The mustard boat is only in the depression hall, and the paper account is old in Meng Guang."