n. hub
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shoulder to shoulder and hub to hub
肩摩毂击
三十辐共一毂，当其无，有车之用。
Thirty spokes converge on a hub.
youdao
轮的样式如同车轮。轴，辋，辐，毂都是铸的。
The wheels were made like chariot wheels; the axles, rims, spokes and hubs were all of cast metal.
还记得卡车上的毂盖吗？
Remember that hub cap from the truck?
本义：车轮中心的圆木，周围与车辐的一端相接，中有圆孔，可以插轴，借指车轮或车 毂，又指生养之神。
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