趕工做成的防壁
Breastwork \Breast"work`\ (br[e^]st"w[^u]rk`), n.
1. (Fort.) A defensive work of moderate height, hastily
thrown up, of earth or other material.
2. (Naut.) A railing on the quarter-deck and forecastle.
breastwork
n : fortification consisting of a low wall [syn: {parapet}]