 美 
											['hedf'ɜːst]
										
													美 
											['hedf'ɜːst]
																 
										
							
																																	"a headfirst plunge down the stairs"
																							"a headlong dive into the pool"
																															
																																	"the runner slid headlong into third base"
																															
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海词词典,十七年品牌