He is an expert on the subject/at that sort of negotiation → er ist. Experts are called in for advice on. Weapons experts were sent to try to uncover evidence of a nuclear programme.
An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. The first principle of skilled memory, the meaningful encoding principle, states that experts exploit prior knowledge to durably encode information needed to perform a familiar task successfully. Some risk experts have tried to model the risk of disruption to business from unrest.
Experts an expert is someone who knows a ton about the subject at hand. (jur) → sachverständige (r) mf; The adjective form of expert describes someone or something that has that special. I'm no expert, but i think you should get that cut seen to.
(= professional) → fachmann m, → fachfrau f; N → experte m, → expertin f; Experts (of) the likes of. It gives insight into the format of experts' knowledge structures;
Experts / connoisseurs of life experts advise that sunscreen reapplied [subjunctive] experts affairs/experts' affairs/expert affairs experts agree that +.</p>