培训班的英文：
a training class

That class increased her accomplishments as a pianist.
那个培训班增长了她作为钢琴师的技艺。

My teacher will spend her summer holidays in taking part in the teacher-training class.
我们老师要利用暑假参加师资培训班

As long as they are getting results, don’t balk if they leave early to hit the gym or take a class.
如果他们要提前离开去健身房或上培训班，只要他们完成任务，就不要阻止他们。

From1986 to1987 I was teaching English training courses for students in international trade and mass communication.
1986年至1987年，我教过英语培训班，学员来自外贸和大众传播单位。

Together with intensive modern dance training, the results surprised both the teachers and the students.
高强度的现代舞培训班成效卓著--令老师惊喜，对"学员"来说，则如虎添翼。

When I was a sophomore, I took part in the training class of computer operation and got a certificate.
上大二时．我参加了计算机操作培训班的学习并获得证书。

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。

It is a step class.
这是踏板操训练班。

The class dismissed.
下课了。

The class teacher sectioned the class for dialogues.
老师把班级分组进行对话练习。

The class teacher dismissed the class on time.
教师按时下课。

A second - class letter is slower than a first - class.
二类信比一类信件慢。