蔓延mànyánTop 8000Meanings1. to spread; to extendCharacters used蔓vine延to prolongExamples2这些zhèxiē措施cuòshī可以kěyǐ预防yùfáng疾病jíbìng蔓延mànyán。These measures can prevent the disease from spreading.火势huǒshì以yǐ扇形shànxíng迅速xùnsù蔓延mànyán。The fire spread out in a fan-shape.