A larva is an insect at the stage of its life after it has developed from an egg and before it changes into its adult form.
例句
The eggs quickly hatch into larvae.虫卵很快孵化成幼虫。...a dragonfly larva.蜻蜓幼虫
英汉词典释义
n.
(昆虫的)幼虫, 幼体
The larva hatches out and lives in the soil.幼虫孵化之后就在土壤里生活。
英英词典释义
Noun
1. the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose