jam

• 名词，指用水果和糖煮成的浓稠甜酱，也指物品卡住、堵塞或交通拥堵的状况。

A noun referring to a thick, sweet spread made from fruit and sugar, or a situation where something is stuck or blocked.

1. Fruit preserveA1formalculinary

   A thick sweet spread made from fruit and sugar, often eaten on bread.

   果酱

   • She spread strawberry jam on her toast.
   • This homemade jam is made from fresh raspberries.
   • I prefer apricot jam over grape jelly.

   同义词confitureconservejellypreserve

2. Traffic congestionA2informal

   A situation where many vehicles are stuck and cannot move easily.

   交通堵塞

   • We were stuck in a traffic jam for two hours.
   • The accident caused a massive jam on the highway.
   • Avoid the city center during rush hour to escape the jam.

   同义词backupbottleneckcongestiongridlockhold upsnarl

   反义词flow

3. Difficult situationB1informal

   A difficult or awkward situation.

   困境

   • He got himself into a real jam by lying to his boss.
   • She was in a jam when she lost her wallet.
   • We are in a jam because the flight was canceled.

   同义词binddilemmafixholemesspicklepredicamentquandaryspottrouble

• 动词，表示把某物塞进狭小空间、使机械卡住，也指（非正式）即兴演奏音乐。

A verb used to indicate the act of forcing something into a tight space, causing a machine or mechanism to become stuck, or (informally) playing music in an improvised session.

1. Preserve fruitB1formalculinary

   To cook fruit with sugar until it becomes thick and spreadable.

   熬果酱

   • She jams strawberries every summer.
   • He learned how to jam oranges from his grandmother.
   • They jammed the apples into a delicious preserve.

   同义词conservepreserve

2. Force or squeezeB1informal

   To push something tightly into a space.

   塞进

   • He jammed his foot into the shoe.
   • She jammed the papers into her bag.
   • They jammed the suitcase shut.

   同义词cramforcepressramshovesqueezestuffwedge

   反义词dislodgeextractfreereleasewithdraw

3. Block or become stuckB1informal

   To cause a machine or mechanism to become stuck or unable to move.

   卡住或卡死

   • The printer jammed because of too much paper.
   • He jammed the lock with a broken key.
   • The gears jammed and the car stopped.

   同义词blockclogcongestcramdisableimmobilizelodgeobstructpackseizesqueezestickstuffwedge

   反义词freeloosenrelease

4. Interfere with signalB2formalIT

   To block or interfere with a radio or electronic signal.

   干扰

   • The enemy tried to jam our communications.
   • They used a device to jam the GPS signal.
   • The radio station was jammed by interference.

   同义词blockdisruptinterfereobstructscramble

5. Improvise musicB2informalart

   To play music in an informal, improvisational way with other musicians.

   即兴演奏

   • The band loves to jam together on weekends.
   • They jammed for hours in the garage.
   • He invited his friends over to jam some blues.

   同义词freestyleimproviseplay aroundriff