They are actually preparing students with majors in chemistry, agricultural engeneering etc. for further studies abroad. That means they have got to prepare and pass certain language tests qualifying them for enrollment in a foreign uni abroad.

The Chinese teachers of that European language concerned do not only have a very basic mastery of the language they are teaching, they also have immense problems in their teaching methodology. I have simply demonstrated how it could perhaps be done, and they did not seem to like it because it would clearly show their own failures. It is useless to discuss that point any further with them...