常见例句双语例句One generation of rice spittle bug ( Callitettix versicolor Fabricius), which has recently become a dominant pest for rice crops, occurs in a year in Chongqing, China.稻赤斑沫蝉已由次要害虫上升为主要害虫，在重庆地区一年发生一代。 返回 spittlebug