to have a good relationship with someone
誰かと良い関係を持つ (dareka to yoi kankei o motsu)
"I really get along with my coworkers."
"私は本当に同僚と仲良くしています。" (watashi wa hontōni dōryō to nakayoku shiteimasu)
to express an opinion openly and clearly
to try your best or use all your energy
to respond angrily or sharply to someone
to study intensely
a situation without problems or difficulties
to do something revolutionary or extremely difficult