轴承专业用英文怎么说呢

轴承专业用英语称作 "bearing". 这个单词来源于中世纪拉丁语 "beren", 意思是 "支撑, 支承"。 例句：

The bearings in this machine need to be replaced. (这台机器的轴承需要更换。)
The bearings on a car's wheels allow the wheels to spin smoothly. (汽车轮子上的轴承使得轮子能够平稳地旋转。)
The bearings in a skateboard help to reduce friction between the wheels and the ground. (滑板上的轴承有助于减少轮子与地面之间的摩擦。)