I have worked for many years, and l have changed several work units several times.

avoid using so many commas, they indicate a pause when speaking so it can disrupt the flow of your sentence.

My current work unit is at a public institution which is responsible for the training of agriculture and farmers in our district.

I came to this work unit in June of this year, so I have worked for five months now in my new work unit.

The category of trainingtraining categories includes fruit production, vegetable production, livestock breeding and so on.

The main idea is to help the farmers make good performance well in these fields to improve their income and promote the development of rural economy.

Each class will last different daysamounts of time according to their nature.

This was a hard sentence to correct, I personally would just reword the entire thing to:

Depending on the class, they last for different amounts of time.

I have worked for many years, and l have changed several in several different work units.

My current work unit is a public institution which is responsible for the training of agricultureal activities and farmers in our district.

You cannot say training agriculture.

I came to this work unit in June this year, so I havet has been five months since I've started workeding for five monthis now in my new work unit.work unit in June.

OurThe main job is to train new types ofpurpose of this work unit is to train professional farmers.

The category of trainingtraining categories includes fruit production, vegetable production, livestock breeding and so on.

The main idea is to help the farmers make good performance Our goal is to promote the development of rural economy by helping these fields to farmers improve their income and promote the development of rural economy.performance and income.

EThe duration of each class will lastis different, days accorepending ton their nature of the topics.

The shortest class only lasts five days and the longest class will lastrange between the shortest and the longest class is between five days to sixteen days.

Of course, somThere are classes maythat last ten days or so.

The training containclass includes theory study and field training, and the two kinds of training usually take up half of the time.

When each class started, weBefore the start of each class, we have to hired teachers and rented hotels for the training conference rooms.

This is something abouta glimpse of my work unit and my job.