Read Edit View history 道碴 dàochá ballast Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 道碴 · dàochá · ballast 2026/03/04 道碴 dàochá ballast (railway) ballast 工人们正在铁轨上铺设新的道碴。 created sense Mar 4, 2026, 02:25 AM