This is a kind of very malignant tumor. 这是一种很恶性的肿瘤。
Malignant gliomas are more aggressive in older people. 恶性的神经胶质瘤在老人身上更具有攻击性。
Indeed, not all viruses are malignant. 事实上,并非所有的病毒都是有害的。
At any rate, magical practices seem to have assumed a more malignant form in Nevis than in some of the other islands. 无论如何,在奈利斯岛上,魔法的习俗比在一些其他岛屿上似乎采取了一种更为有害的方式。