array(1) { [434834]=> array(2) { [2]=> array(5) { [0]=> string(6) "美國(guó)" [1]=> string(9) "傳染病" [2]=> string(12) "流感疫苗" [3]=> string(12) "新冠疫苗" [4]=> string(12) "突發(fā)疫情" } [4]=> array(1) { [0]=> string(19) "同花順7x24快訊" } } }