gas

• 名词，指物质的一种状态，没有固定形状或体积；也指用于取暖、烹饪或作燃料的燃气。

A noun referring to a state of matter that has no fixed shape or volume, or a flammable substance used for heating, cooking, or as fuel.

不规则复数

1. State of matterB1formalscientific

   A substance that has no fixed shape or volume and expands to fill any container.

   气体

   • Oxygen is a gas essential for human life.
   • The gas in the balloon expanded when heated.
   • Carbon dioxide is a greenhouse gas.

   同义词gaseous statevapor

   反义词liquidsolid

2. FuelA2formal

   A flammable substance used for heating, cooking, or powering vehicles.

   燃料

   • We need to fill the car with gas before the trip.
   • The stove runs on natural gas.
   • Gas prices have increased this month.

   同义词fuelgasolinenatural gaspetrolpropane

3. Digestive gasB1informalmedical

   Air or gas in the digestive tract that is expelled from the body.

   肠胃气

   • Eating beans can cause gas.
   • He had terrible gas after the meal.
   • The baby had gas and was crying.

   同义词fartflatulenceflatuswind

• 动词，指供应或处理气体（如充气、用毒气攻击），也指闲聊、吹牛或空谈。

A verb used to indicate the act of supplying or treating with gas, or to talk idly or boastfully.

1. To poison with gasB2formal

   To kill or harm someone by exposing them to poisonous gas.

   用毒气毒杀

   • The soldiers were gassed during the attack.
   • Many innocent people were gassed in the war.
   • The factory workers were accidentally gassed by a leak.

2. To fill with fuelA2informalamerican

   To supply a vehicle with gasoline or fuel.

   加油

   • I need to gas up the car before the trip.
   • He gassed the lawnmower before cutting the grass.
   • She stopped at the station to gas the truck.

   同义词fill upfuelrefuel

3. To talk excessivelyB2slangamerican

   To talk a lot, often in a boastful or idle manner.

   闲聊吹牛

   • He was gassing about his new job all night.
   • Stop gassing and get to work.
   • They were gassing on the phone for hours.

   同义词babbleblatherchattergabjabberjawprattlerambleyakyammer

短语动词变体gas up