Hub
01
轮毂, 车轮中心
the central part of a wheel where the axle is housed, allowing the wheel to rotate freely
例子
The mechanic inspected the hub bearings to ensure smooth wheel rotation.
机械师检查了轮毂轴承以确保车轮旋转顺畅。
The racing team upgraded the car 's hubs to improve handling and performance.
赛车队升级了汽车的轮毂以提高操控性和性能。
例子
The city is a major transportation hub, connecting flights from around the world.
这个城市是一个主要的交通枢纽，连接着来自世界各地的航班。
The tech hub of the country is home to many startups and innovation centers.
该国的科技中心是许多初创企业和创新中心的所在地。
03
中心, 枢纽
a central station, airport, etc. that provides passengers with many services
