the central and most important part of a particular place or activity （某地或活动的）中心，核心◆the commercial hub of the city 城市的商业中心◆Mumbai, India's financial hub 孟买，印度的金融中心◆He's a man who likes to feel he's at the hub of things(= where things happen and where important decisions are made). 他是那种乐於把自己当成事物中心的人。
(; ) in a system of transport or communication, a central place to which passengers, messages, etc. go before going on to another place （通信）枢纽；（运输）中转◆All international flights are via our hub at Schipol airport. 所有的国际航班经由我们的阿姆斯特丹史基浦大型中转机场转机。◆a distribution/transportation/network hub 分销／运输／网络枢纽◆a hub airport 大型中转机场