If the interval between non-working periods is not long, it can be filled in normally. If the other party has questions, it can be said that during the period when he has no job, he has learned skills or business, and his ability has improved to some extent.

If there is no long interval between work cycles, you can write only one paragraph. But don't write about this experience in particular, just write that you are still doing related work, but the progress is not much, but it is average.