zazzex“"What I believe I can devote myself to to leave an ever memorable trace in the history is through becoming an automobile designer, the only dream of mine. "”
Wrong. Plain wrong. The sentence was probably written by someone whose native language isn't English.
It starts out fine: What I believe I can devote myself to...
Even the rather awkward doubling of to is grammatical as the second to is part of the infinitive to leave, which appears to indicate purpose. Then the problems pile up.
Ever memorable sounds home-made to my ear. Memorable is enough; everlasting might be what the author needs. History is an abstract noun and consequently takes no article.
Is through becoming is wrong. The only dream of mine is ungrammatical. Instead of This is the car of mine we say This is my car. In other words, my only dream is correct.
CB