常见例句雙語例句A virus disease of sugar beet occurred in Ningxia showing symptoms of yellows, parch blight and necrotic yellow vein of foliage leaves.發生在甯夏甜菜上的一種病毒病的病株葉叢主要表現爲黃化、焦桔和葉脈黃化壞死。 返回 parch blight