大行其道 dà xíng qí dào

DEFINITIONS

  1. rampant
  2. very popular

CHARACTERS

大 dà
HSK 1
big, great, vast, large, high
行 xíng
HSK 3
go; walk; move, travel; circulate
其 qí
HSK 3
his, her, its, their; that
道 dào
HSK 2
path, road, street; method, way