noun
违反，违背，触犯.
The act of contravening a rule, regulation, or law, or of not fulfilling an obligation, promise, or agreement.
他们违反条约的行为加剧了国际紧张局势。
contravention
/ˌkɒntrəˈvɛnʃən/ /ˌkɑːntrəˈvɛnʃən/The act of contravening a rule, regulation, or law, or of not fulfilling an obligation, promise, or agreement.
他们违反条约的行为加剧了国际紧张局势。