to forget what you were thinking or saying
vergessen, was man dachte oder sagte (fergessen vas man dakhte oder zagte)
"I lost my train of thought when the phone rang."
"Ich habe vergessen, was ich dachte, als das Telefon klingelte." (ikh habe fergessen vas ikh dakhte als das telefon klingelte)
to have influence or importance
to be completely absorbed in what you’re doing
of the highest quality; excellent
a peaceful time before trouble begins
to say something embarrassing or inappropriate
Because of a desire to know or learn something.