expression trough using o thoosite

Wo + tooshite is use in formal adverbial phrase, it's meaning some method, other purpose, but also..

It's use in after Noun

See example below

Watashitachi no manada wo tooshite iroiro na koto ga wakatte kita.

私たちの学んだを通していろいろなことが　わかって来た。

Trough our study/ learn, various fact to be known