 
							 美 
											['pɑːlɪp]
										
													美 
											['pɑːlɪp]
																 
										
							
																																	"in some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase"
																															
The starfish eat the tiny polyps which build up the coral.
出自:Times
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