to make someone feel happier
誰かを幸せにする (dareka o shiawase ni suru)
"Her smile can brighten up your day instantly."
"彼女の笑顔は瞬時にあなたの一日を明るくする。" (kanojo no egao wa shunji ni anata no ichinichi o akaruku suru)
without any doubt; completely certain
to separate or end a relationship or marriage
to think about the future with optimism
to start broadcasting in real time on social media
to support opposing parties to gain advantage
to hope that things will happen the way you want