Idiom: There is no exception.
Explanation: Du: one couple: one pair. Not only one, but also a pair. It means that two things or two people are very similar.
example sentence:
1. He wore a white shirt today. Coincidentally, his deskmate also wore a white shirt today.
2. The environmental damage in the Bohai Sea is very serious. Coincidentally, the Yellow River has also suffered environmental damage.
3. Xiao Ming said that his favorite article is unique, which is also my favorite.
Idioms have nothing unique
Coincidentally, the Chinese idiom, pronounced w ú d ú y ǒǒǒǒǒǒǒǒ u, means that although rare, there is more than one, and there is something that can be paired, indicating that two things or two people are very similar. From "Reply to Mr. Wang Jingxuan" by Liu Bannong.
Chinese names are unique
Pinyin w ú d ú y ǒ u ǒ u
Traditional style is unique
Idiom usage combination: used as object, attribute and clause with more than one derogatory meaning.
For example, in Sweeping the Mist Broom, a Zhuang of the Qing Dynasty: "I heard that Jane was from Sichuan, and this woman is also from Sichuan, which can be said to be unique." Source of the idiom: In answer to Mr. Wang Jingxuan, Liu Bannong: "Mr. and this old man can be said to be unique."