hub

[hʌb]

n.中心, 轮毂, 轮轴

例句与用法：

The capital and largest city of Malaysia, on the southwest Malay Peninsula northwest of Singapore. Founded by tin miners in1857, it is the commercial and industrial hub of the country. Population, 937,817.

吉隆坡马来西亚的首都和最大城市，位于马来半岛的西南部、新加坡西北。于1857年由锡矿工人建立，现为该国的商业和工业中心。人口937, 817

A slot for a key in the hub or shaft of a wheel.

键槽轮子的毂或轴里的键的沟槽

详细释义：

n.

1. (轮)毂; (推进器的)旋翼叶毂

2. (兴趣、活动的)中心