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
语法信息
有生性状态
无生命
形态构成
简单词
可数
复数形式
hubs
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。
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。
03
中心, 枢纽
a central station, airport, etc. that provides passengers with many services
