1
with a thud
作名词时，thud 指沉重物体撞击发出的闷响；with a thud 作状语表示伴随这种声音。
The heavy box hit the floor with a thud.
沉重的箱子砰的一声撞到了地板上。
砰的一声；沉闷的响声
先理解核心含义，再看它在真实句子里的用法。
砰的一声；沉闷的响声
a heavy dull sound made by the impact of heavy objects
The heavy box hit the floor with a thud.
沉重的箱子砰的一声撞到了地板上。
沉闷的撞击声
The sound of a dull impact.
重物撞击发出的沉闷声
a heavy dull sound (as made by impact of heavy objects)
沉重而沉闷的撞击
A hard, dull impact.
缓慢而沉闷的大面积撞击
A slower, dull impact with a wide surface area.
The heavy book landed on the floor with a loud thud.
那本厚重的书砰的一声掉在地板上。
I heard a dull thud from the room upstairs.
我听到楼上房间传来一声沉闷的响声。
The shelf collapsed and the boxes fell with a series of thuds.
架子塌了，箱子砰砰地一连串掉下来。
作名词时，thud 指沉重物体撞击发出的闷响；with a thud 作状语表示伴随这种声音。
The heavy box hit the floor with a thud.
沉重的箱子砰的一声撞到了地板上。
用 of 引出声音来源，例如 the thud of footsteps（沉重的脚步声）。
I heard the dull thud of the book landing on the table.
我听到书落在桌上时沉闷的砰的一声。
作动词时 thud 是不及物动词，常接 against/on/onto 等介词，表示“砰的一声撞到/掉到某处”。
The book thudded onto the floor.
书砰的一声掉在了地板上。
Not this
The heavy box fell to the floor with thud.
Use this
The heavy box fell to the floor with a thud.
thud 是可数名词，在固定搭配“with a thud”中必须加不定冠词 a；汉语的“砰的一声”没有冠词，所以学习者容易漏掉。
Not this
The suitcase thudded the ground.
Use this
The suitcase thudded onto the ground.
thud 作动词时是不及物动词，不能直接接宾语；要表示“砰地撞到某处”，需要用 onto、against 等介词引出地点。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一声闷响
A dull thud from the next room made me jump.
隔壁房间传来一声闷响，吓得我跳了起来。
砰的一声
The book landed on the floor with a thud.
书砰的一声落在地板上。
咚咚的脚步声
We could hear the thud of footsteps on the stairs.
我们能听见楼梯上咚咚的脚步声。
心怦怦直跳
Her heart thudded as she waited for the results.
她等待结果时心怦怦直跳。
砰地撞上
A branch thudded against the window in the wind.
一根树枝在风里砰地撞在窗户上。
砰地撞入
The arrow thudded into the target.
箭砰地扎进靶子。
砰！
In the 1960s 'Batman' TV series, fight scenes were punctuated with comic-book captions such as 'THUD!'
在1960年代的电视剧《蝙蝠侠》中，打斗场面会配上“砰！”这样的漫画式字幕。
砰！
Terry Pratchett's novel 'Thud!' is named after the sound of a heavy impact.
泰瑞·普拉切特的小说《砰！》以沉重撞击声命名。
Use thud naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆：'thud' 听起来像重物落地的闷响，比'啪'（pop）更沉、更低，比如一袋沙包砸在地上。
语域：neutral 常见场景：重物落地、碰撞 thud 用于描述重物落地或碰撞时发出的沉闷声，也可指砰然落下的动作；语气中性偏日常，口语和一般书面叙述中都比较常见，正式语境中也可以使用。
注意：动词变位时双写 d：thudded、thudding。
Dictionary facts from ECDICT, WIKTIONARY.