explained — Simple past tense and past participle of explain.
illustrated — containing pictures, drawings, and other illustrations: an illustrated book.
developed — If you talk about developed countries or the developed world, you mean the countries or the parts of the world that are wealthy and have many industries.
expanded — Being or having been enlarged, extended, or broadened, in particular.
explicated — Simple past tense and past participle of explicate.
clarified — Clarified butter has been made clear by being heated.
delineated — to trace the outline of; sketch or trace in outline; represent pictorially: He delineated the state of Texas on the map with a red pencil.
exemplified — Simple past tense and past participle of exemplify.
commented — a remark, observation, or criticism: a comment about the weather.
construed — to give the meaning or intention of; explain; interpret.
described — to tell or depict in written or spoken words; give an account of: He described the accident very carefully.
discoursed — communication of thought by words; talk; conversation: earnest and intelligent discourse.
elucidated — Simple past tense and past participle of elucidate.
enucleated — Simple past tense and past participle of enucleate.