不渝之交 bù yú zhī jiāo

DEFINITIONS

  1. an unchanging friendship; a relationship that remains steadfast and unwavering

CHARACTERS

不 bù
HSK 1
no, not; un-; negative prefix
渝 yú change; chongqing
之 zhī
HSK 4
marks preceding phrase as modifier of following phrase; it, him her, them; go to
交 jiāo
HSK 4
mix; intersect; exchange, communicate; deliver