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To keep something back that you could give, and that the other person may be expecting or to. The key idea is a choice: you HAVE it, you could hand it over, and you decide not to. That is what makes it different from simply not giving — a witness who withholds information has the information.
To keep something back that you could give, and that the other person may be expecting or entitled to把你原本可以給、而對方可能正在期待或有權得到的東西，扣住不給。The key idea is a choice重點在於這是一個選擇：you HAVE it你已經擁有這個東西，you could hand it over你可以交出去，and you decide not to但你決定不給。That is what makes it different from simply not giving這就是它跟單純「沒有給」不一樣的地方——a witness who withholds information has the information扣住不說的證人，其實是掌握著這個資訊的。
Common things people withhold: information, evidence, a name, permission, consent, approval, payment, food, medical treatment, and (in tax) money taken out of your pay before you ever see it. It can also be used about feelings — to withhold affection means to deliberately stop being warm to someone, often to punish them.
Common things people withhold常見被withhold的東西包括：information, evidence, a name, permission, consent, approval, payment, food, medical treatment資訊、證據、姓名、許可、同意、批准、款項、食物、醫療照顧，and (in tax) money taken out of your pay before you ever see it以及（稅務上）在你拿到薪水之前就先被扣掉的錢。It can also be used about feelings它也可以用在感情上——to withhold affection means to deliberately stop being warm to someone, often to punish themto withhold affection指的是故意不再對某人溫暖，通常是為了懲罰對方。
The word carries some weight. In news and legal writing it often hints at : "the company withheld the test results". But it can be perfectly proper too — a paper may withhold a victim's name to protect them, and a doctor may withhold treatment because the patient asked.
The word carries some weight這個字帶著一點份量。In news and legal writing在新聞和法律文書裡 it often hints at wrongdoing它常常暗示著有不當行為："the company withheld the test results"像"the company withheld the test results"這家公司隱瞞了檢測結果。But it can be perfectly proper too不過它也可以完全是正當的——a paper may withhold a victim's name to protect them報社可能為了保護受害者而不公開姓名，and a doctor may withhold treatment because the patient asked醫生也可能因為病人要求而暫緩治療。
Register: formal. In everyday talk people say "he didn't tell us" or "they're holding back the money".
Register: formal語域上是正式用語。In everyday talk在日常對話裡 people say "he didn't tell us" or "they're holding back the money"大家會說"he didn't tell us"他沒告訴我們，或"they're holding back the money"他們把錢扣住不給。
The past form is withheld, not "withholded": "She withheld her number."
The past form is withheld, not "withholded"過去式是withheld，不是"withholded"："She withheld her number.""She withheld her number."意思是她沒有透露她的號碼。
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
withholdverb/wɪθˈhəʊld/
- 1
To keep (a physical object that one has obtained) to oneself rather than giving it back to its owner.
- The bank withheld her credit card.
- Us if he ſhall hear novv, hovv much leſs vvill he hear vvhen vve cry hereafter, vvho once deliver'd by him from a King, and not vvithout vvondrous Acts of his Providence, inſenſible and unvvorthy of thoſe high Mercies, are returning precipitantly, if he vvithold us not, back to the Captivity from vvhence he freed us.
- 2
To keep (information, assent, etc.) to oneself rather than revealing it.
- withhold vital information
- a withheld phone number
- 3
To stay back, to refrain.
- I’ll withhold from asking about it.
- Do you wish to proceed with those down the line in that order? […] We’ll withhold for now.
withholdnoun/wɪθˈhəʊld/
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ScientologylifestylereligionAn immoral action or condition (an overt) that has not been disclosed to others; the consciousness of such an action or condition.
- I was afraid to go into review for the help I needed because of the withholds I had against the organization, withholds acquired at the franchise: our late evening discussions, our kidding around at the expense of other Scientologists.
- Dianetics is concerned with purifying the individual of negative emotions, evil spirits, overts, and withholds.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。