先来后到 xiān lái hòu dào

DEFINITIONS

  1. in order of arrival
  2. first come, first served

CHARACTERS

先 xiān
HSK 1
first, former, previous
来 lái
HSK 1
come, coming; return, returning
后 hòu
HSK 1
queen, empress, sovereign; (simp. for 後) behind, rear, after
到 dào
HSK 2
go to, arrive, been to