Kansas'ı huzurlu tutmak için çok çalıştı.
- He had worked hard to keep Kansas peaceful.
Tom öfkeyi kontrol altında tutmak için elinden geleni yaptı.
- Tom did his best to keep temper under control.
He made up his mind to keep his plan secret.
- Er fasste den Entschluss, seinen Plan geheim zu halten.
It wasn't easy for him to keep his promise.
- Es war nicht leicht für ihn, sein Versprechen zu halten.