overturn

• 名词，指推翻、倾覆或撤销某事物的行为，也指竞争中意外的、不太可能的胜利（如弱者击败强者）。

A noun referring to the act of upsetting or reversing something, or an unexpected and improbable victory, especially in a competitive context.

1. Act of upsetting somethingB2formal

   The action of turning something over or causing it to fall.

   翻倒

   • The overturn of the truck blocked the highway for hours.
   • The boat's overturn was caused by a sudden wave.
   • The overturn of the table sent dishes crashing to the floor.

   同义词capsizeinversionturnoverupset

2. Unexpected victoryB2informal

   An improbable and surprising win, especially in sports or politics.

   意外胜利

   • The team's overturn of the champions shocked everyone.
   • The election resulted in a dramatic overturn of the ruling party.
   • His overturn in the final match was the highlight of the tournament.

   同义词shockstunnersurpriseturn upupset

• 用于表示把某物翻转、底朝上，或撤销、废止某项决定、规则、制度等的动词。

A verb used to indicate the act of turning something upside down, or to reverse a decision, rule, or system.

1. Flip overB1formal

   To turn something so that its top becomes its bottom, or to cause something to fall over.

   翻倒

   • The strong wind overturned the garden table.
   • He accidentally overturned his glass of water.
   • The boat overturned in the rough sea.

   同义词capsizeflipinverttip overtoppleturn overupendupset

   反义词rightupright

2. Reverse a decisionB2formallegal

   To officially change a decision or rule, making it no longer valid.

   推翻

   • The court overturned the previous verdict.
   • The committee voted to overturn the ban.
   • The judge overturned the decision on appeal.

   同义词annulcancelinvalidatenullifyoverrulerepealrescindreverserevokeset aside

   反义词affirmratifysustainupholdvalidate

3. Overthrow a rulerB2formalpolitical

   To remove a government or leader from power, especially by force.

   推翻

   • The rebels attempted to overturn the dictator.
   • The revolution overturned the monarchy.
   • The coup successfully overturned the ruling party.

   同义词bring downdeposedethroneoustoverthrowtoppleunseat

4. Cancel officiallyB2formallegal

   To annul or invalidate something, such as a law or agreement.

   撤销

   • The new law overturned the previous regulations.
   • The contract was overturned by mutual agreement.
   • The policy was overturned after public outcry.

   同义词abrogateannulinvalidatenullifyoverrulequashrepealrescindrevokevoid

   反义词confirmratifyupholdvalidate

5. Change radicallyC1formalscientific

   To completely change the way something is done or thought about.

   彻底改变

   • The discovery overturned centuries of scientific belief.
   • Her research overturned the traditional understanding of the disease.
   • The new technology overturned the entire industry.

   同义词overthrowrevolutionizetransformupend