The phrase "also expounded" is correct and usable in written English.
It can be used when you want to indicate that something has been explained or elaborated upon in addition to other information.
Example: "In the report, the author also expounded on the implications of the findings for future research."
Alternatives: "also elaborated" or "also explained".
Its design principles are also expounded in detail.
The producers also expounded more broadly on the vision and themes of the series.
He also expounded on family breakdown and the difficulties posed by an ageing population.
Narboni also expounded and gave radical interpretations to certain conceptions that he understood as implied in the Guide.
He also expounded on his previously disclosed intention to become a designer — "not just clothing but water-bottle design, architecture, everything".
In Przedświt (1843; "The Moment Before Dawn") he developed a messianic interpretation of Polish history, and this conception of Poland as "the Christ among the nations" was also expounded in Psalmy przyszłości (1845; "Psalms of the Future").
Hughes also expounds at length, in prose riddled with typos, in support of Trevor Potter's proposed Anti-Corruption Act and other reform movements.
He also expounds the extraordinarily modern aesthetic philosophy behind his glossy romances — "The surface isn't really the surface, but rather a manifestation of the depths" — and delivers a directorial credo: "Style is the most profound expression of personality".
Out in the morning!" The poet also expounds his "deeply felt conviction, the result of much observation in New York, Brooklyn, and other cities, that the only true and profitable way of reaching the morals of the young is through making them first healthy, clean-blooded and vigorous specimens of men".
Now, we give some examples to show the existence of these generalized contractive mappings (i - vi) whi - viso expound the relation betwhichthem.
She also expounds on the racism baked into the Electoral College.
