to keep something secret
何かを秘密にしておく (nanika o himitsu ni shite oku)
"They managed to keep the project under wraps until the launch day."
"彼らはプロジェクトを秘密にしておくことに成功しました、発売日まで。" (Karera wa **purojekuto o himitsu ni shite oku** koto ni seikō shimashita, hatsubai hi made)
to gain new energy or enthusiasm for something
both sides must trust each other
to make someone feel happier
To amaze or impress someone greatly.
to prepare energetically to do something
a sudden realization or new idea
