Perfidiousness
背信弃义\\n叛卖
📖 牛津释义
perfidiousness
n [U].
🗣️ 情景例句
Of course.
对啊。
Many a true word is spoken in jest.
戏言寓真理。
The man went to great lengths to prove that the diamonds were real.
那人竭力想证明那钻石是真货。