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Jyutping caa4 gwo1 si1 kwan4 dou2
Pinyin chá gē sī qún dǎo

Definitions (CC-CEDICT)
  1. Chagos Archipelago, coral archipelago in tropical Indian Ocean, with Diego Garcia 迪戈·加西亞島|迪戈·加西亚岛[Di2 ge1 · Jia1 xi1 ya4 Dao3] as largest island