The Vietnamese word "giảng thuật" can be translated to "lecture" or "explanation" in English. It is a compound word formed from "giảng," which means to explain or lecture, and "thuật," which refers to a method or technique.
While "giảng thuật" primarily refers to the act of lecturing or explaining, in some contexts, it can also imply the way in which information is presented or the style of teaching used.