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Jyutping am3 soeng1 cou1 zok3
Pinyin àn xiāng cāo zuò

Definitions (CC-CEDICT)
  1. covert activities (election rigging etc)
  2. under-the-table manipulations
  3. black operations
Definitions (Wiktionary)
  1. noun, figuratively
    manipulation behind the scenes
    (syn.) 黑箱操作
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 日常用語:臺
    黑箱作業
  2. 日常用語:陸
    暗箱操作
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    他能为你暗箱操作。
    他能為你暗箱操作。
    tā néng wèi nǐ àn xiāng cāo zuò 。
    • He can pull strings for you.
Examples (Wiktionary)
  1. Mandarin
    改革是公共大众的事,改革是光明正大的事,不能只在少数精英贵族中讨论,不能静悄悄地进行,更不能在那里搞什么暗箱操作。
    改革是公共大眾的事,改革是光明正大的事,不能只在少數精英貴族中討論,不能靜悄悄地進行,更不能在那裏搞什麼暗箱操作。
    gǎi gé shì gōng gòng dà zhòng de shì , gǎi gé shì guāng míng zhèng dà de shì , bù néng zhǐ zài shǎo shù jīng yīng guì zú zhōng tǎo lùn , bù néng jìng qiāo qiāo de jìn xíng , gèng bù néng zài nà lǐ gǎo shén me àn xiāng cāo zuò .
    • Reform is a public affair for the masses. Reform is an open and aboveboard affair. It should not merely be discussed among a small number of the best and brightest of the aristocracy. It should not be carried out in a "hush-hush" manner, much less behind closed doors.