ballooning

• 指乘坐或驾驶热气球、气球飞行器的活动或运动；也可泛指充气、膨胀的过程。

A noun referring to the activity or sport of flying in a hot air balloon.

不可数

1. Sport or activityB1formal

   The activity or sport of flying in a hot air balloon.

   热气球飞行

   • Ballooning is a popular tourist attraction in Cappadocia.
   • She took up ballooning as a hobby after retirement.
   • The ballooning festival attracts enthusiasts from around the world.

2. Rapid expansionB2formal

   A rapid increase in size, amount, or value, often used in economic or financial contexts.

   急剧膨胀

   • The ballooning of the national debt is a major concern.
   • There has been a ballooning of costs in the healthcare sector.
   • The ballooning population in the city is straining resources.

   同义词boomescalationexpansionexplosionsoaringspikesurgeswelling

   反义词contractiondeclinedecreasereductionshrinkage

• 动词，表示像气球充气一样迅速膨胀、增大或增多。

A verb used to indicate the act of swelling or expanding rapidly, often in size or quantity, like a balloon inflating.

1. Increase rapidlyB2informal

   To swell or expand quickly in size, amount, or importance.

   迅速增长

   • The company's profits ballooned after the new product launch.
   • The crowd ballooned to over 10,000 people within an hour.
   • His debt ballooned due to high interest rates.

   同义词escalateexpandexplodemushroomproliferaterocketskyrocketsoarsurgeswell

   反义词contractdecreasedeflatediminishreduceshrink

2. Swell outwardB1informal

   To become round and tight, like a balloon filling with air.

   膨胀

   • The sails ballooned in the strong wind.
   • Her stomach ballooned during the pregnancy.
   • The parachute ballooned open as she jumped.

   同义词billowbulgedistendexpandinflatepuff outswell

   反义词collapsecontractdeflateshrink