larvan.幼虫；幼体larvated遮掩的Larvacea幼形纲Larvatrol苏云金杆菌larvarium幼虫巢larvacide杀虫剂,灭蛹剂larval oil幼虫油脂larva seta幼虫后刚毛larvascope幼虫检查镜larvaceous[医] 隐蔽的, 潜在的larvacidal[医] 杀幼虫的, 杀蚴的

1. Some larvae extend the galleries to form niches.
   许多幼虫将坑道延伸扩大成壁龛。
2. Once mayfly larvae are found, they will be removed.
   一旦蜉蝣幼虫被发现，它们就会被去除。