When writing your CV you need to cover your basic job responsibilities but without just mentioning the routine. Keep your duty summaries concise and try to concentrate on the results that came out of your everyday work. So, highlight your achievements, not your duties
Achievements are things you did that had a lasting impact for your company or client. It is a result that you personally bring about while fulfilling a particular role. Typically they are things that you created, built, designed, sold or initiated. It is not the same as responsibilities that come under a job description, as these remain fixed no matter who is employed in the post. An achievement is unique to your experience and tells the employer that you can deliver. So, keep your duty summaries concise, and focus instead on unique accomplishments.
Many people are uncertain how to express their achievements vs. responsibilities. This is because many responsibilities can often seem to be achievements and most achievements can appear to be responsibilities. To avoid any confusion, you must focus on determining which of the experiences that you have gained through the workforce can be classified as achievements and which ones can be classified as responsibilities.