| 单词 | hub | 
| 释义 | Word Frequency hub(hʌb) noun 1.  the central portion of a wheel, propeller, fan, etc, through which the axle passes  2.  the focal point 3.  computing a device for connecting computers in a network  4.  an airport, railway station, bus station, etc from which many services operate and connecting journeys can be made  Word origin C17: probably variant of hob1 | 
	
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