kingpin
US
UK kingpin n: (bowling: centre pin) (保龄球)
SC 中央木柱 zhōng yāng mù zhù
The bowler knocked down everything but the kingpin.
kingpin n: figurative (central element) (比喻)
SC 最重要的因素，关键因素 zuì zhòng yào de yīn sù，guān jiàn yīn sù
Carbon is the kingpin of life on earth.
kingpin n: (chief person of organization)
SC 头领 tóu lǐng
We need Bob; he's the kingpin of the entire company.