to be very close friends
とても親しい友達である (totemo shitashii tomodachi de aru)
"Those two have been thick as thieves since childhood."
"この二人は子供の頃からとても親しい友達です。" (Kono futari wa kodomo no koro kara totemo shitashii tomodachi desu.)
to stay updated or adapt to modern trends
extremely tired or annoyed by something
when a politician supports or votes for the opposite party
to ignore or hide a problem or mistake
to support or defend someone
a decision where people are divided in opinion