I view his action as a breach of trust.

我认为他的行为是背信弃义。

youdao

Revealing the secret would be a breach of trust.

泄露秘密是对信任的破坏。

youdao

Some regard debt as the road to ruin and the failure to repay as a breach of trust.

有些道德观念认为债务是通向毁灭的道路，而未能按时偿还则被认为是背信弃义的表现。

youdao

Passing sentence, Judge PD Kode said Patil was guilty of a breach of trust and deserved no sympathy.

BBC: Scene of Mumbai blast, 1993

The fundamental questions are more basic: Has there been a breach of trust?

FORBES: Fact and Comment

Ms Giuseppina Silvio, defending counsel, said he had made a "full and frank admission" and recognised it was a breach of trust.

BBC: John King