Actually, there is a reason. Two is not a good word here. We often say that others are second-rate. In film and television dramas, we can often see the words "bow first, then bow, then bow, or bow first, then bow, then bow, then bow" when bowing to the monarch or teacher. Then why use "kowtow again" or "bow again" instead of "bow again" here? The other two also have the homonym of children, which means a little disrespect, so they are generally replaced by two.

In addition, the Reason why we use "re" instead of "Er" is also the reason for the convention. Long-term habits naturally formed the present statement. In fact, we bow and kowtow to show respect, and the use of "zai" can not only indicate quantity, but also indicate further meaning. Time and time again, it is more in line with the meaning of kowtowing or bowing. There are occasions when you bow your head or buckle your head, which are generally more solemn occasions. It is much more solemn to use the word "two", which is one of the reasons.

In a word, we use "Re" instead of "Er", which is more in line with the meaning of the usage scenario than "Er" except for the conventional reasons. Because China literature is extensive and profound, the meanings of different words are very different. Using the wrong words can not only express the correct meaning, but also give people a bad feeling sometimes. This is why we see that words with the same meaning are sometimes used, but it is often required to use only fixed words when using them.

Bowing once and then bowing three times is a unique product of China culture, deeply rooted in China culture. Therefore, when rearranging words, the requirements are stricter. Even if we distinguish it ourselves, we feel that the word "two" sounds more pleasant and meets our requirements for language modification. If you use two bows on this occasion, it will give people a feeling of discomfort. For the above reasons, we should say two bows instead of two bows when mourning.