Square collar
The Pinyin is f ǔ y ī f ā NGL ǐ ng, which means luxurious clothes. It refers to princes and dignitaries. It comes from Wang Wei's preface to the banquet of prime ministers in Wei's Xiaoyao valley.
Idiom explanation
Luxurious clothes. It refers to princes and dignitaries.
Idioms and allusions
Wang Wei of the Tang Dynasty wrote in the preface to the banquet of the prime ministers in Wei's Xiaoyao Valley by the late spring Grand Master: "the guests, the princes, are dressed in a square collar, with their pen hanging down. They are not famous for their imperial edicts, and they have no orders to bow down."
Square collar
keep the parents warm in winter and cool in summer - dōng wēn xià qìng