实践上, 种子不需要干藏而是采种后即层积.In practice, seeds should not be stored dry but stratified on removal from the fruit.我爬上三层积满灰尘的楼梯, 禁不住凄然泪下,又加衣衫单薄冷得直打哆嗦.I went up three dusty flights of stairs and I cried, shivering in my thin coat....
a viral infection病毒性感染He is suffering from viral meningitis.他患病毒性脑膜炎.A variety of viral agents cause aseptic meningitis or meningoencephalitis.各种病毒性因子可引起无菌性脑膜炎或脑膜脑炎....