«he has assembled and organized his material and acquired a firm grasp of his theme, but has not yet brought it finally into focus.» / Lingvo Live

How to translate? (en-ru)

he has assembled and organized his material and acquired a firm grasp of his theme, but has not yet brought it finally into focus.

1.
Уже собрав и упорядочив свой материал, он прочно закрепился на этой теме, но пока ещё окончательно на ней не сконцентрировался.
translation added by Alexander Аkimov
Gold en-ru
2

| Валерий |added a comment 2 years ago

Что значит "прочно закрепился на этой теме"?! )) Может все-таки "разобрался"?!