用theoretical attainment造句子，“theoretical attainment”造句

More important,these history works have also unfolded the historical views which the authors had,and their prominent achievement on theoretical attainment in chronology and writing practice. They are the precious source material for us who study Tibetan history.

Present studies mostly pay attention to what vocational traits a teacher should have but few explore the regulation how a teacher forms his educational theoretical attainment.