noun🔗Share主销，转向轴颈销。 (motorized vehicles) The axis around which steered wheels pivot; a bolt that holds the axis in place—a kingbolt."The car's kingpin was loose, causing the steering wheel to wobble. "这辆车的转向轴颈销松了，导致方向盘晃动。vehiclemachineparttechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share中心柱，首瓶。 The pin at the centre of the triangle of bowling pins (originally the tallest pin in kayles). Sometimes also the headpin at the apex."The bowler aimed carefully, hoping to knock down the kingpin for a strike. "保龄球手仔细瞄准，希望击倒首瓶，打出一个全中。sportgameChat with AIVocabulary GamePractice Reading
noun🔗Share首脑，大佬，主脑。 The most important person in an undertaking or organization."In the student council, the kingpin was the president, who made all the important decisions. "在学生会里，主席是真正的首脑，所有重要的决定都由他来做。personorganizationbusinessjobpositionChat with AIVocabulary GamePractice Reading
noun🔗Share主销，中心销 The bolt holding together the truck of a roller skate or skateboard."The skateboard's kingpin was loose, making it hard to turn. "这滑板的中心销松了，导致很难转弯。partvehiclemachinesportChat with AIVocabulary GamePractice Reading
