go crazy

go crazy — 慣用語

1. to become mentally ill or lose the ability to think and behave normally

1.慣用語B1
釋義

精神失常

失去理智，出現精神問題

to become mentally ill or lose the ability to think and behave normally

例句

After the accident, Trang's grandfather went crazy and could no longer recognise his family.

車禍之後，Trang 的祖父發瘋了，再也認不出他的家人。

go crazy + from trauma / cause

The character in the play slowly goes crazy as she loses everything she loves.

戲裡的角色在失去一切後，慢慢地發瘋了。

同義詞
反義詞
  • stay sane

    opposite — to remain mentally healthy

文法句型

go crazy + (from/with + cause)

常見錯誤

❌After the accident, he went crazy and started crying.
✅After the accident, he went crazy and could no longer recognise his family.
💡'go crazy' for mental illness implies a lasting breakdown, not temporary sadness.

2. to behave in a very excited, angry, or uncontrolled way because you are feeling

2.慣用語A2
釋義

發狂；失控

因強烈情緒而行為失控

to behave in a very excited, angry, or uncontrolled way because you are feeling strong emotions

例句

When their team won the final, the fans went crazy and ran onto the field.

當球隊贏得決賽時，球迷們發狂了，衝到球場上。

go crazy + with excitement (celebratory)

Rafael went crazy when he saw that someone had scratched his new car.

Rafael 看到有人刮傷他的新車時，氣得發狂。

同義詞
  • go wild

    similar meaning, slightly less intense

  • lose control

    broader — can describe any loss of self-control

  • freak out

    more informal, often suggests panic or overreaction

反義詞
  • stay calm

    remain composed when something exciting or frustrating happens

文法句型

go crazy + (with + emotion)

用法筆記

Common in informal speech. Use with 'with + emotion' (excitement, anger, joy, frustration) to specify the cause. Not used in formal writing.

常見錯誤

❌I went crazy when I saw the movie.
✅I went crazy with excitement when I saw my favourite singer.
💡the strong emotion should be stated or clear from context.

3. if prices, numbers, or other measurable things go crazy, they increase or change

3.慣用語B2
釋義

暴漲；失控

（事物）快速增長難以控制

if prices, numbers, or other measurable things go crazy, they increase or change very quickly and become difficult to manage

例句

Housing prices in the city have gone crazy over the past few years.

這座城市的房價在過去幾年暴漲。

prices / numbers go crazy

Meera's tomato plants went crazy after the rain and took over the whole garden.

Meera 的番茄在下雨之後長得失控，蔓延了整個花園。

同義詞
反義詞
  • stabilise

    to stop changing wildly and become steady

文法句型

go crazy (subject = prices / numbers / plants)

用法筆記

Subject is usually a thing (prices, numbers, plants, problems) — not a person. The meaning is that something grows or changes far beyond normal limits.

常見錯誤

❌My boss went crazy and gave me more work.' — This could be confused with sense 2 (angry behaviour).
✅The workload went crazy and I could not finish it all.
💡use for things, not people.