English course vs. English class

[WhiteRussian]

Hello my friends ;-) Please tell me if you see a difference between the terms 'English class' and 'English course'. For example, if I say I attend an English course doesn't this mean that I attend an English class? Or is an English class an English lesson and an English course consists of many lessons/classes?

Thank you!

[Mister Micawber]

Classes are usually single lessons but can also be courses of lessons (or the group of people attending such).
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Native English teacher at Mister Micawber's