mén​hù​kāi​fàng​zhèng​cè

Open Door policy

  1. gateway
    a strategic location or essential passage providing access to a place
  2. to be open to the public
    to open for public use or traffic; to be in operation, as in a library or park; to open to the world
  3. policy
    A set of plans, strategies, or guidelines adopted by a government, political party, or organization to achieve specific goals