adj.无光线的(黑暗的)
Poisoning of domestic animals,especially cattle and sheep,caused by eating white snakeroot or rayless goldenrod and characterized by muscular tremors and weakening. 乳毒症家畜中毒，尤指牛和羊，由食用白色蛇根草或无边花的黄花引起，表现为肌肉颤抖和虚弱等症状。
Poisoning of domestic animals, especially cattle and sheep, caused by eating white snakeroot or rayless goldenrod and characterized by muscular tremors and weakening. 乳毒症家畜中毒，尤指牛和羊，由食用白色蛇根草或无边花的黄花引起，表现为肌肉颤抖和虚弱等症状
"Hid by a rayless night" (Percy Bysshe Shelley) “在黑暗的夜幕下躲藏了起来”(珀西·比希·雪莱)
Hid by a rayless night(Percy Bysshe Shelley) 在黑暗的夜幕下躲藏了起来(珀西·比希·雪莱)
