堡礁 bǎojiāo barrier reef Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 大堡礁是地球上最大的珊瑚礁。 dàbǎojiāo shì dìqiú shang zuìdà de shānhújiāo. The Great Barrier Reef is the largest coral reef on our planet. Source: OpenSubtitles