ground

• 名词，指地球的坚硬表面或土壤，也指用于特定目的的一块土地。

A noun referring to the solid surface of the earth, or a specific area of land used for a particular purpose.

1. A1formal

   The solid surface of the earth.

   地面

   • The ball fell to the ground.
   • We sat on the ground to have a picnic.
   • The ground was wet after the rain.

   同义词earthlandsoilterra firmaterrain

2. A2formal

   An area of land used for a particular purpose.

   场地

   • The school has a large playing ground.
   • They bought a piece of ground to build a house.
   • The ground is fertile for farming.

   同义词areafieldlandlotsite

3. Reason or basisB2formal

   A reason or justification for an action or belief.

   理由

   • On what grounds did you make that decision?
   • She had no grounds for complaint.
   • The case was dismissed for lack of grounds.

   同义词basiscausefoundationjustificationmotiverationalereason

4. Electrical connectionB2formal

   A connection to the earth in an electrical circuit.

   接地

   • Make sure the appliance is properly grounded.
   • The electrician checked the ground connection.
   • A faulty ground can cause electrical shocks.

   同义词earth

• 动词，指通过碾压或摩擦将某物磨碎成细小的颗粒或粉末；也可表示刻苦用功或辛勤工作。

A verb used to indicate the act of reducing something to small particles or powder by crushing or friction, or to work or study with intense effort.

不规则动词

1. Crush into small piecesA2formal

   To reduce something to small particles or powder by rubbing or crushing.

   磨碎

   • She grinds coffee beans every morning for fresh coffee.
   • The mill grinds wheat into flour.
   • He ground the spices with a mortar and pestle.

   同义词crumbcrushgranulatemashmillpoundpowder

2. Work hard or monotonouslyB2informal

   To work or study with intense effort, often in a repetitive or tedious manner.

   刻苦努力

   • He grinds away at his homework every night.
   • She's been grinding for the final exams all week.
   • They grind through the same routine day after day.

   同义词drudgelaborplodslaveslogsweattoil

   反义词idleloafplayrelax

3. Rub or press harshlyB1formal

   To press or rub something against a surface with force, often causing friction or wear.

   用力摩擦或按压

   • The car's brakes ground against the metal.
   • He ground his teeth in frustration.
   • The gears grind loudly when they need oil.

   同义词abradecrunchgnashgrateraspscrapewear down

短语动词变体grind awaygrind downgrind out

• 动词，表示将某物固定在地面或限制其移动，也可指为某事物建立基础或依据，还指将电路与大地连接。

A verb used to indicate the act of restricting movement, establishing a basis, or connecting to the earth electrically.

1. Restrict movementB1informal

   To prevent someone from leaving a place, especially as a punishment.

   限制外出

   • His parents grounded him for a week after he broke curfew.
   • The pilot was grounded due to a medical issue.
   • She was grounded from using her phone for a month.

   同义词confinedetainkeep inrestrainrestrict

   反义词freerelease

2. Base or establishB2formal

   To base something on a particular fact, idea, or principle.

   基于

   • The theory is grounded in years of research.
   • Her argument was grounded in solid evidence.
   • The company's policies are grounded in ethical practices.

   同义词anchorbaseestablishfoundpredicateroot

3. Crush into small piecesB1formal

   To reduce something to small particles or powder by grinding.

   磨碎

   • She ground the coffee beans for a fresh brew.
   • The mill ground the wheat into flour.
   • He ground the spices using a mortar and pestle.

   同义词crushgratemashmillpoundpowder

   反义词assemblebuildcoalescecombineconsolidateconstructcreateintegratejoinunite