入境随俗 rù jìng suí sú

DEFINITIONS

  1. When you enter a country, follow the local customs (idiom); do as the natives do
  2. When in Rome, do as the Romans do

CHARACTERS

入 rù enter, come in(to), join
境 jìng boundary, frontier; area, region
随 suí follow, listen to, submit to
俗 sú social customs; vulgar, unrefined