thud

thud n.

砰擊聲, 重擊

vi.

砰的一聲掉下, 轟的一聲

vt.

砰地擊中

英英解釋:名詞thud:
1. a heavy dull sound (as made by impact of heavy objects)
同義詞：thump, thumping, clump, clunk
動詞thud:
1. make a dull sound
同義詞：thump
2. strike with a dull sound
3. make a noise typical of an engine lacking lubricants
同義詞：crump, scrunch