any of numerous plants of the genus Euphorbia; usually having milky often poisonous juice
造句
用作名詞(n.)
Eradication of leafy spurge in the alfalfa field and nearby area is an important measure inintegrated control of alfalfa rust in north China. 鏟除苜蓿田內及附近的大戟屬植物，應是我國北方苜蓿銹病綜合防治的重要措施之一。