According to the regulations, the last word in the upper part must be the end of the word "Yi Sheng" and the lower part is the end of the word "Ping Sheng".
The ending words of the first part of couplets should be flat tones, equivalent to three or four tones in modern Chinese, and the ending words of the second part are usually flat tones, equivalent to one or two tones in modern Chinese.
Method of distinguishing upper and lower links by expanding knowledge
According to the left and right direction.
According to the formula of "people stand in front of the door, right hand up, left hand down", that is, the sentences of couplets should be posted on the right hand side, and the sentences should be
If connected to the left hand side.
In chronological order.
That is, the first time is the upper part, and the last time is the lower part. For example, "the door welcomes the blessings of spring, summer, autumn and winter, and the door embraces the east, west, north and south."
According to language habits.
For example, "Happiness is like flowing water in the East China Sea, and longevity is younger than Nanshan".
Divided by causality.
That is, "cause" is the upper part and "effect" is the lower part.
According to the scope of the scene.
In terms of time, space and specific things, it is generally from left to right, from big to small, such as "every year, the full moon."