若虫, 幼虫
an immature form of an insect that does not change greatly as it grows, e.g., a dragonfly, mayfly, or locust
:
• The dragonfly nymph lives underwater before emerging as an adult.
蜻蜓若虫在羽化成虫之前生活在水下。
• Locusts develop through a nymph stage.
蝗虫通过若虫阶段发育。