封锁线 fēng suǒ xiàn

DEFINITIONS

  1. blockade line
  2. CL:道[dao4]

CHARACTERS

封 fēng
HSK 4
letter, envelope; feudal
锁 suǒ
HSK 5
lock, padlock; shackles, chains
线 xiàn
HSK 4
line, thread, wire; clue