美 
											['fɔːrf'əʊld]
																
										
							
																																	"quadruple rhythm has four beats per measure"
																							"quadruplex wire"
																															
																																	"a fourfold increase in the dosage"
																															
以上内容独家创作,受著作权保护,侵权必究
海词词典,十七年品牌