Willinger suggested that bacterial infections in infants might simply aggravate other risk factors for SIDS, such as smoke exposure or babies sleeping on their stomachs.是什么意思_Willinger suggested that bacterial infections in infants might simply aggravate other risk factors for SIDS, such as smoke exposure or babies sleeping on their stomachs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句