词典释义：
双语例句
-
Beet armyworm, Spodoptera exigua Hübner outbroke on many vegetable crops and it had become a dangerous pest in recent years.
近些年来， 甜菜夜蛾在我国淮河以南地区蔬菜等 作物上频繁发生，已成为一种灾害性害虫。