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n.轮轴;中心,焦点;(电器面板上的)电线插孔;[计]集线器 变形: 复数:hubs 英英释义: hub[ hʌb ]n.the central part of a car wheel (or fan or propeller etc) through which the shaft or axle passesa center of activity or interest or commerce or transportation; a focal point around which events