to betray or sacrifice someone to save yourself
自分を守るために誰かを裏切ったり犠牲にしたりすること (jibun o mamoru tame ni dareka o uragitta ri gisei ni shita ri suru koto)
"He threw his colleague under the bus to avoid getting fired."
"彼はクビを免れるために同僚を裏切った。" (kare wa kubi o manukareru tame ni doryo o uragitta)
a connected series of thoughts
To be very close friends
to think in an unconventional or creative way
recovered and healthy again
to contribute money toward a shared cost
to compromise by agreeing to part of what each person wants