n.甲壳虫,大槌,捶布机
vt.& vi.快速移动,用大槌捶打
He saw a shiny green beetle on a leaf.
我看见树叶上有一只闪闪发光的绿色甲虫.
a rare species of beetle
一种稀有甲虫
A firefly is a type of beetle.
萤火虫是一种甲虫.