轮训的英文：
training in rotation

training是什么意思：
n. 训练；培训

the tail of a train
火车的尾部

explosive train
火药系

Is this dog trained?
这狗受过排便训练吗？

The train was in motion.
火车开动了。

This is a passenger train.
这是辆客运列车。

rotation是什么意思：
n. 旋转，转动；自转；轮换，轮流，循环

The crankshaft makes three rotations for each rotation of the rotor.
转子每转一周，曲轴转3周。

eddy current rotating brake
涡流旋转制动机

There will have to be a more defined playing rotation.
必须要有一个更详细的比赛轮转计划。

The Earth rotates round the sun.
地球围绕太阳转。

To cause to rotate,revolve,or turn.
使转动、旋转或滚动