pin yin un fa yin"un" shi han yu pin yin zhong de yi ge fu yun mu, ta zai han zi de fa yin zhong you zhe te shu de zu yong. gen ju xian dai han yu pin yin xi tong,"un" shi you "u" he "
pin yin u liang dian biao sheng diaoVietnamese commonly uses "u" with two dots above it to mark the tone, which is one of the basic rules in Vietnamese spelling.
quan zi de pin yin shi ji sheng"Quan" zhe ge zi zai Han Yu Pin Yin zhong de du yin shi "quán",ji suan zuo er sheng(ˊ)。Pin Yin shi han zi fa yin de yi chong