experience
The German word 'Erfahrung' is used to describe a situation or event that one has gone through or encountered in life. It can refer to both positive and negative experiences, and is often used to express the knowledge or skills gained from such experiences. For example, 'Durch meine Erfahrung als Lehrer weiß ich, wie man mit schwierigen Schülern umgeht.' (Through my experience as a teacher, I know how to deal with difficult students.)
I have a lot of experience in the automotive industry.
This sentence implies that the speaker has spent a significant amount of time working in or studying about the car industry, thus gaining substantial knowledge or skill in that area.
Your experience in this field is impressive.
This sentence is expressed to someone who has an impressive amount of knowledge or skill in a particular area or field. It is attributing the attribute of being impressive to the individual's expertise.
Experience is the best teacher.
This is a common saying that implies that we learn more from doing things and participating directly than from studying or reading about them. It implies that the knowledge or skill gained from doing something first-hand is superior to that gained theoretically.