to say bad things about someone when they are not present
誰かのいないところで悪口を言う (dareka no inai tokoro de waruguchi o iu)
"I don’t like people who talk behind my back."
"私は陰で私の悪口を言う人が好きではありません。" (watashi wa kage de watashi no waruguchi o iu hito ga suki de wa arimasen)
better or more amazing than imagined
someone who is unemotional or not friendly
A true friend is the most valuable gift one can have
to make someone happy
a simple solution to a complex problem
to stay focused on your goal