insidious
基本解释阴险的,隐匿的,暗中为害的,(疾病)不知不觉之间加剧
网络释义
1)insidious,阴险的;隐匿的;暗中为害的;(疾病)不知不觉之间加剧2)Lacking conscious awareness;unmindful.,不知不觉的;不自觉的3)insidious rumors;an insidious disease.,阴险的谣言;隐伏的恶疾4)insanitary,不卫生的;有害健康的;易引起疾病的5)shady,成荫的,多荫的;可疑的,靠不住的;背阴的;阴暗的,隐藏的6)Unknown etiological disease,不明病因的疾病