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Jyutping dai2 sai3
Pinyin dǐ xì

Definitions (CC-CEDICT)
  1. inside information
  2. the ins and outs of the matter
  3. how things stand
  4. what's up
Definitions (CC-CANTO)
  1. one's hidden background or motive
Definitions (粵典–words.hk)
  1. 名詞
    人​嘅​背景​資料​同​佢​做​過​嘅​事
    background, identity and past record
    • 你負責查呢條友嘅底細,我去跟蹤佢。
      你负责查呢条友嘅底细,我去跟踪佢。
      nei5 fu6 zaak3 caa4 ni1 tiu4 jau2 ge3 dai2 sai3, ngo5 heoi3 gan3 zung1 keoi5.
      You check the background of this guy. I will follow him.
Definitions (Wiktionary)
  1. noun
    details; ins and outs; inside information
    (syn.) 路数, 路數, 内情, 內情, 内幕, 底蕴, 內幕, 头脑, 底子, 底蘊, 頭腦
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    我哋摸清楚人哋嘅底细,先可以百战百胜。
    我哋摸清楚人哋嘅底細,先可以百戰百勝。
    ngo5 dei6 mo2 cing1 co2 jan4 dei6 ge3 dai2 sai3, sin1 ho2 ji5 baak3 zin3 baak3 sing3.
    • We have to probe the adversaries' background details in order to win every time.
  2. Cantonese
    底细
    底細
    dai2 sai3
    • someone's background
  3. Cantonese
    你负责查呢条友嘅底细,我去跟踪佢。
    你負責查呢條友嘅底細,我去跟蹤佢。
    nei5 fu6 zaak3 caa4 ni1 tiu4 jau2 ge3 dai2 sai3, ngo5 heoi3 gan3 zung1 keoi5.
    • You check the background of this guy. I will follow him.
Examples (Wiktionary)
  1. Mandarin
    过了些日子,那几个受过高等教育的年轻人知道了强的底细,心里就起毛说,就凭我们的学历,怎能窝在他手下?
    過了些日子,那幾個受過高等教育的年輕人知道了強的底細,心裏就起毛説,就憑我們的學歷,怎能窩在他手下?
    guò le xiē rì zi , nà jǐ ge shòu guò gāo děng jiào yù de nián qīng rén zhī dào le qiáng de dǐ xì , xīn lǐ jiù qǐ máo shuō , jiù píng wǒ men de xué lì , zěn néng wō zài tā shǒu xià ?
    • After a few days, those few youngsters who had received higher education learned of Qiang's background, so they felt disconcerted and said, "On the basis of our educational background, how could we stay under him?"