Central part of a wheel that attaches to the axle

• The thick, usually cylindrical section called the nave

轮子与车轴连接的中央部分

• 通常较厚的圆柱形部分，称为轮毂

Place where many routes or services converge and are distributed

• A central airport, station, or city for transfers

多条线路或服务汇集并分流的地点

• 用于中转的枢纽，如机场、车站或城市

Central place or organization for related activities or services

• A focal point that coordinates or supports a network

负责相关活动或服务的中心场所或机构

• 协调或支撑网络的核心点

Hardware device that connects multiple ports to a computer or network

• Distributes data or power among attached devices

将多个端口连接到计算机或网络的硬件设备

• 为连接设备分配数据或电源

Central area in a game from which levels are accessed

• A safe or neutral space linking different stages

游戏中的中央区域，可进入各关卡

• 连接不同阶段的安全或中立空间