thud

1. N-COUNT A thud is a dull sound, such as that which a heavy object makes when it hits something soft. 沉悶聲

She tripped and fell with a sickening thud. 她絆倒了，發出一聲嚇人的悶響。

2. V-I If something thuds somewhere, it makes a dull sound, usually when it falls onto or hits something else. 發出沉悶聲

She ran up the stairs, her bare feet thudding on the wood. 她跑上樓梯，光腳在木頭上發出噔噔的聲音。

3. V-I When your heart thuds, it beats strongly and somewhat quickly, for example, because you are very frightened or very happy. (因害怕或狂喜心髒) 怦怦跳

My heart had started to thud, and my mouth was dry. 我的心開始怦怦跳，而且嘴巴發乾。