clack (intransitive)
不及物用法，主语发出噼啪声。
The wooden floorboards clacked as she walked.
她走路时木地板噼啪作响。
喋喋不休；急促而不加思索地说；发出短促尖锐的声响或一连串响声；发咔嗒声；使发出短促尖锐的声响或一连串响声；使发咔嗒声；喋喋不休；不加思考地随口说出；噼啪响
to make a sudden short sharp noise, or to cause something to make such a noise
发出短促尖锐的声响或一连串响声；发咔嗒声
To make a sudden, sharp noise, or succession of noises; to click.
使发出短促尖锐的声响或一连串响声；使发咔嗒声
To cause to make a sudden, sharp noise, or succession of noises; to click.
喋喋不休；不加思考地随口说出
To chatter or babble; to utter rapidly without consideration.
一般现在时
The old wooden floor clacks when you walk on it.
当你走在上面时，旧木地板会噼啪响。
一般过去时
He clacked the two stones together to make a spark.
他噼啪地撞击两块石头以产生火花。
现在进行时
The knitting needles are clacking as she works.
她工作时，编织针正在噼啪作响。
规则动词，过去式和过去分词加-ed。
The old typewriter clacks loudly whenever someone uses it.
每当有人使用这台旧打字机时，它就会发出响亮的噼啪声。
用法提示：使用第三人称单数形式clacks，表示物体发出噼啪声的动作。
The train wheels were clacking against the tracks as it sped by.
火车飞驰而过时，轮子与轨道碰撞发出噼啪声。
用法提示：过去进行时were clacking，描述持续的噼啪声响。
She clacked the knitting needles together impatiently.
她不耐烦地把编织针碰得噼啪响。
用法提示：过去式clacked，及物动词用法，表示使物体碰撞发声。
不及物用法，主语发出噼啪声。
The wooden floorboards clacked as she walked.
她走路时木地板噼啪作响。
及物用法，使宾语发出噼啪声。
He clacked the billiard balls together.
他把台球撞击得噼啪响。
表示因撞击而发出噼啪声。
The loose shutter clacked against the window frame.
松动的百叶窗咔嗒咔嗒地敲击窗框。
grammar · medium
易错句子The door clack loudly.
正确表达The door clacks loudly.
当主语是第三人称单数时，动词需加-s。'clack'的第三人称单数形式是'clacks'。
grammar · medium
易错句子Yesterday, the door clack.
正确表达Yesterday, the door clacked.
在一般过去时中，动词需用过去式。'clack'的过去式是'clacked'。
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