信頼していた親友にすらも裏切られるとは、思ってもみなかった。
I never even dreamed that I would be betrayed even by my trusted best friend.
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Example sentences
He would never do something like betraying a long-time friend.
努力は裏切らない。であるからこそ、最後まで諦めずに走り抜こう。
Effort does not betray. Therefore, let's run to the end without giving up.
この野郎、よくも俺を裏切ったな！
You bastard, how dare you betray me!
男は自分を裏切った仲間を鋭い目つきで睨み付けた。
The man glared at the comrade who betrayed him with a sharp look.
その騎士は王を裏切り、反逆の罪に問われた。
The knight betrayed the king and was charged with treason.
彼は金銭の亡者となって、友人さえも裏切った。
He became a slave to money and betrayed even his friends.
彼は、裏切った仲間を呪い殺すと誓った。
He vowed to curse the comrade who betrayed him to death.
彼は富を得るために邪心を起こし、友人を裏切った。
He felt an evil intent to gain wealth and betrayed his friend.
友人を裏切る忘恩負義の行為は許せない
I cannot forgive the ungrateful betrayal of a friend.
Usage Notes
Used when someone breaks trust or defects to an opposing side. Can also refer to going against expectations.
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