Write 堵 (dǔ) — to block up (a road, pipe etc); to stop up (a hole); (fig.) (of a person) choked up with anxiety or stress; wall (literary); (classifier for walls) | HSK Ace
HSK 4
堵
dǔ
to block up (a road, pipe etc); to stop up (a hole); (fig.) (of a person) choked up with anxiety or stress; wall (literary); (classifier for walls)