elaborated

v add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing；v produce from basic elements or sources; change into a more developed product；v make more complex, intricate, or richer；v work out in detail；s developed or executed with care and in minute detail

详尽说明( elaborate的过去式和过去分词 ); 变得复杂; 详细制定; 详尽阐述