to suddenly remember a past event
過去の出来事を突然思い出す (kako no dekigoto o totsuzen omoidasu)
"The photo made her flash back to her first day at work."
"その写真は彼女に初めての仕事の日を思い出させました。" (Sono shashin wa kanojo ni hajimete no shigoto no hi o omoidasasemashita.)
To keep something secret.
To investigate more thoroughly or find out more details.
to remain loyal or supportive
a piece of evidence that clearly proves guilt
to open your books and begin studying
to reconnect later to get an update