大堡礁 dàbǎojiāo Great Barrier Reef Origin Definitions Defs Strokes Stroke Words Sentences Sents 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult堡礁 bǎojiāo proper noun barrier reef a type of coral reef that is long and narrow, running roughly parallel to the shore and separated from it by a lagoon