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Hub
01
中心
the central part of a wheel where the axle is housed, allowing the wheel to rotate freely
02
中心
a center of activity or interest or commerce or transportation; a focal point around which events revolve
03
中心
a central station, airport, etc. that provides passengers with many services
例子
The racing team upgraded the car's hubs to improve handling and performance.
The mechanic inspected the hub bearings to ensure smooth wheel rotation.
The manufacturer recommends greasing the hub bearings during routine maintenance.
The auto shop specializes in refurbishing vintage car hubs for restoration projects.
The hub of the rear wheels showed signs of wear and needed replacement.
