adj.不忠的，通奸的

She suspected her husband was unfaithful, but had no proof.
她怀疑丈夫不忠，但没有证据。
His unfaithful actions shattered their seemingly perfect marriage.
他的不忠行为打破了他们看似完美的婚姻。
Despite her deep love for him, she found herself being unfaithful.
尽管她深爱着他，但她发现自己还是背叛了他。
The rumors about the politician's unfaithful behavior damaged his reputation.
关于这位政治家不忠的谣言损害了他的声誉。
He felt immense guilt for being unfaithful to his long-term partner.
他对背叛了长期伴侣感到极度内疚。
Her unfaithful heart caused her to question the value of commitment.
她的不忠之心让她对承诺的价值产生了疑问。
The once-loving couple ended their relationship due to unfaithfulness.
曾经恩爱的两人因为不忠而结束了关系。
The novel explores the consequences of unfaithfulness in a small town.
这部小说探讨了一个小镇上不忠行为的后果。
The unfaithful spouse sought forgiveness from their partner, but trust was irreparably broken.
不忠的配偶向伴侣寻求宽恕，但信任已经无法修复。
In the aftermath of his unfaithfulness, he vowed to change his ways.
在他不忠之后，他发誓要改变自己的行为。