idiom > leave no stone unturned
Contents
Rack their brains
  Explanation: Analogy by all means.
  Usage: Verb-object type, as a predicate, adverbial; containing derogatory
  Source: Lu Xun "lace Literature exam three ugly" for example, asked, "Thirteen Classics" What, Wen Tianxiang, is that the DPRK people, all do not need to rack their brains to do their own, one to do, down bad. "
  Examples: For example, ask "Thirteen Classics" What, Wen Tianxiang, is that the DPRK people, all ~ do not need themselves, one to do, down bad. (Lu Xun "lace Literature exam three ugly")
  Riddle: Tin
wā kōng xīn sī
  Great pains to design and plan
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No. 3
  Think hard to secure personal gain speculation
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Scheming
  Scheming. Lu Xun's "Snappy the examination room three ugly": "Those questions are as long as the Journal article notes, they are qualified. For example, ask '13 through' what, Wen Tianxiang is that the DPRK people, all do not need to rack their brains to their own to do. "Cao Yu" Sunrise "first act:" I did not think hard to fool the people, seized the people. "
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No. 5
  Metaphor of effort, by all means.
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No. 6
  挖空心思 (wā kōng xīn sī)
  解释:比喻费尽心思,想尽一切办法。
  出处:清·俞万春《荡寇志》第一百二十六回:“今此贼挖空心思,用到如许密计,图我安如泰山之郓城。”
  近义词:搜索枯肠、费尽心机
  反义词:无所用心
  语法:动宾式,作谓语、状语;含贬义
  示例:例如问《十三经》是什么,文天祥是那朝人,全用不着自己来~做,一做,倒糟糕。 ★鲁迅《花边文学·考场三丑》
  词语感情色彩:多含贬义
成语词典
  成语名称
  挖空心思
  汉语拼音
  wā kōng xīn sī
  成语释义
  比喻想尽一切办法。
  成语出处
  鲁迅《花边文学·考场三丑》:“例如问《十三经》是什么,文天祥是那朝人,全用不着自己来挖空心思做,一做,倒糟糕。”
  使用例句
  无
English Expression
  1. n.:  leave no stone unturned,  rack one’ s brains; cudgel one's brains; think hard
Thesaurus
in oneway or another, To persist Mansheng, Danzhijielv, To persist Man Health, by all means
Containing Phrases
leave no stone unturned embosom