大地洞 dàdìdòng cavern Definitions Defs Origin Strokes Stroke Words Sentences Sents 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult地洞 dìdòng hole in the ground a hole in the ground, such as a tunnel, cave, burrow, or dugout; can be natural or man-made
