dummy up
collocation保持沉默
He dummied up when the police asked him questions.
当警察问他问题时，他保持沉默。
做假动作
dummies — third person singular of dummy
先理解核心含义，再看它在真实句子里的用法。
做假动作
to make a feint, especially in sports
During the meeting, he decided to dummy and not respond to the accusations.
会议期间，他决定保持沉默，不对指控作出回应。
制作某物的模型或原型版本,缺少部分或全部预期功能
To make a mock-up or prototype version of something, without some or all off its intended functionality.
假动作
To feint.
dummy
Base
原形
dummies
3rd person
第三人称单数
dummying
-ing
现在分词
dummied
Past
过去式
dummied
Past participle
过去分词
He dummies his responses.
他假装回应。
She dummied a smile.
她假笑了一下。
They are dummying the test data.
他们正在伪造测试数据。
规则动词，注意 y 变 i 加 ed。
When asked about his whereabouts, she just dummied and looked away.
当被问及他的下落时，她只是沉默不语，看向别处。
The witness chose to dummy during the cross-examination.
那位证人在交叉询问中选择沉默不语。
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保持沉默
He dummied up when the police asked him questions.
当警察问他问题时，他保持沉默。
演习，排练
We did a dummy run of the presentation to check for any problems.
我们对演示进行了演习，以检查是否有问题。
沉默不语，闭口不谈
He dummied up when the police asked him questions.
当警察问他问题时，他沉默了。
发脾气，发火
She threw a dummy spit when she didn't get her way.
她没达到目的就发火了。
Use dummies naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
动词dummy像‘dumb’（哑的），联想‘装哑巴’即‘装傻’。
语域：neutral 常见场景： 在提供的权威资料中，动词' dummy '的释义未明确给出，常用义项为名词或形容词。建议学习者注意词性差异。
All listed words rhyme with 'dummy' (/dʌmi/). The spelling pattern 'ummy' corresponds to the pronunciation /ʌmi/ in these words.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.