One of the pain point when learning Mandarin is that most of the Anglicism we use in western languages are simply not used. For example in IT, 接口 refer to an API and 框架 to a framework. This was confusing for me at the beginning and I could hardly follow technical meetings. Over the years, I put up a list of words and sentences collected from situations encountered at work. They are usually the quickest way of expressing something and are safe to use in a professional context.