n.(昆虫的)幼虫,幼体
A larva metamorphose into a chrysalis and then into a butterfly.
幼虫变为蛹,然後再变成蝴蝶.
A caterpillar is the larva of a butterfly.
毛虫是蝴蝶的幼体.
The larva hatches out and lives in the soil.
幼虫孵化之后就在土壤里生活.