A good friend
It is a Chinese idiom. Pinyin is Ni è B ì zh ī h ǎ o, which means that a man and a woman are engaged to marry. It comes from the second volume of Shi Zhou Chun Yu written by Er Shisheng in Qing Dynasty.
The origin of Idioms
"Xiuyuesheng is very intimate with Wenxiang, and has always been a good friend," said the second volume of shizhouchunyu written by ershisheng in the Qing Dynasty
Idiom usage
As an object; often used between men and women
A good friend
The true face of Lushan Mountain - lú shān zhēn miàn mù
disciples and old followers or minor officials - mén shēng gù lì
obey others against one's will - jiàng xīn xiāng cóng