中国科兴新冠病毒灭活疫苗获批用于巴西3-5岁儿童

array(1) { [413429]=> array(2) { [2]=> array(5) { [0]=> string(6) "中国" [1]=> string(6) "巴西" [2]=> string(6) "疫苗" [3]=> string(12) "新冠疫苗" [4]=> string(12) "新冠疫情" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }