array(1) { [458176]=> array(2) { [2]=> array(5) { [0]=> string(6) "美國" [1]=> string(6) "疫苗" [2]=> string(6) "輝瑞" [3]=> string(12) "新冠疫苗" [4]=> string(12) "新冠疫情" } [4]=> array(1) { [0]=> string(19) "同花順7x24快訊" } } }