yū淤mud, sediment; clog up, silt upFrequency 2.9Meaningsmud, sediment; clog up, silt upRelated words淤泥淤积淤青淤塞淤伤淤灌淤血斑清淤Example sentences河里的淤泥需要定期清理。他的腿上有一块淤青。