rifling

• 指在枪炮枪管或炮管内壁刻制螺旋形凹槽的工艺，使弹丸或炮弹在射出时旋转，从而提高飞行稳定性和射击精度。也指这些螺旋形凹槽本身。

A noun referring to the process of cutting spiral grooves inside the barrel of a firearm to impart a spin to the projectile, improving accuracy.

不可数

1. Spiral grooves in a firearm barrelC1formaltechnical

   The process or result of cutting spiral grooves inside the barrel of a firearm to impart a spin to the projectile, improving accuracy and stability.

   枪管膛线

   • The rifling in the barrel ensures the bullet travels in a straight path.
   • Gunsmiths carefully cut the rifling to precise specifications.
   • The depth and twist rate of the rifling affect the bullet's trajectory.

• 动词，指快速而粗暴地搜查某处，常常是为了偷窃或拿走东西。

A verb meaning to search through something quickly and roughly, often with the intent to steal or take items.

1. Search through quicklyB2informal

   To search through something quickly and often carelessly, usually with the intent to steal or find something.

   快速翻找

   • The thief rifled through the drawers looking for cash.
   • She rifled through her bag to find her keys.
   • He rifled through the papers on the desk.

   同义词combgo throughransackrummagescoursearch

   反义词guardprotectsecure

2. B2informal

   To steal or take something from a place or person.

   偷窃

   • The burglars rifled the house while the owners were away.
   • Someone rifled his wallet on the crowded bus.
   • They rifled the safe and escaped with the jewels.

   同义词burglarizelootpilferpillageplunderransackrobsteal

   反义词bestowgiverestorereturn