bulge

• 名词，指物体或表面上圆形的鼓起、凸出部分，也可指数量或体积的突然增大。

A noun referring to a rounded swelling, protrusion, or outward curve on a surface or object.

1. Protrusion or swellingB1formal

   A rounded swelling or protuberance on a surface.

   凸起

   • There was a bulge in the wall where the pipe had burst.
   • The bag had a bulge from the heavy books inside.
   • He noticed a bulge in his pocket from the keys.

   同义词bumpconvexityexcrescencehumpknoblumpnodenoduleoutgrowthprojectionprominenceprotrusionprotuberanceswelling

   反义词cavitydepressionhollowindentation

2. B2informal

   A sudden or temporary increase in number or amount.

   临时增加

   • There was a bulge in sales during the holiday season.
   • The population bulge in the city caused housing shortages.
   • We experienced a bulge in demand for our new product.

   同义词boostincreasejumprisespikesurgeupsurge

• 动词，指因内部压力或填充而向外鼓起、凸出或膨胀。

A verb used to indicate the act of swelling, protruding, or sticking out outward, often due to internal pressure or fullness.

1. Swell outwardB1formal

   To stick out or swell from a surface or container.

   凸出

   • His pockets bulged with coins.
   • The bag bulged with groceries.
   • Her eyes bulged in surprise.

   同义词bagballoonbellyjutpouchprojectprotrudestick outswell

   反义词flattenrecedesink

2. Increase in size or numberB2formal

   To become larger or more numerous, often temporarily.

   膨胀

   • The population of the city bulged during the festival.
   • The file size bulged after adding the images.
   • The budget bulged due to unexpected expenses.

   同义词balloonenlargeescalateexpandgrowincreasemushroomsurgeswell

   反义词contractdecreaseshrink

短语动词变体bulge out