It elaborates the definitions of epimer and epimerization, states the applications of epimerization in medicine and pesticide,and points out its expansive prospect .
"Put differently , language is pliantly expansive so as to allow me to objectify a great variety of experiences coming my way in the course of my life."
The studies of city cinema images in contemporary film will improve the studies of film text in a more expansive cultural history context, which leads to a significative and irradiative method.