圍牆

围墙
wéiqiáng
  1. perimeter wall
  2. fence

classifier: 道

CEDICT

Entry Composition

1 圍 wéi
  1. to encircle
  2. to surround
  3. all around
  4. to wear by wrapping around (scarf, shawl)
2 牆 qiáng (slang) to block (a website) (usu. in the passive: 被牆 bèiqiáng)

classifiers: 面, 堵