Precision. It means you are close, but not exact. So, what you say is understandable, but not exactly right. Good habits will make it right.

"Accuracy" in speaking a language would refer to choosing the right words from a group of similar one and in getting the grammar right. For example, in your question you have a small error: you wrote, "one time a teacher tell me ..." It should be, "one time a teacher told me ..."

you must ask a teacher what exactly was meant by these words... we can only guess that here

You need more correction in your english this is what your teacher said..