1、Their pests are slugs, plant flies and a variety of other pests that shelter under leaf-litter, stones, plates and under opercula of moss and liverwort.(他们的害虫有蛞蝓、食植物虫和其他各种躲藏在泥叶、石头底下、餐盘和苔藓盖下的害虫。)
2、This triggers a peristaltic wave of contractions which start at the mouth and pass through all the buccal segments, including the operculum, causing an ingested food bolus to be propelled caudad.(这引发了一个起始于口部并贯穿所有口部节段的蠕动波,包括鳃蓋,使进食物被推向脊腰部。)