array(1) { [446430]=> array(2) { [2]=> array(3) { [0]=> string(6) "美國" [1]=> string(12) "公共衛(wèi)生" [2]=> string(12) "新冠疫情" } [4]=> array(1) { [0]=> string(19) "同花順7x24快訊" } } }