the luminous larva or wingless grub-like female of a firefly
glowworm详细解释
glow.worm
n.(名词) Any of various luminous female beetles or beetle larvae of the families Phengodidae and Lampyridae, especially the larva or wingless grublike female of a firefly. 萤火虫:一种发光的萤科雌性甲虫或幼虫,尤指退化或缺翅的蛆状的雌性的发光飞虫