1. 不履行：nonpayment 无力支付 | nonperformance 不履行 | nonperiodic 非周期的

2. 不实施：nonpenerative 非贯穿的 | nonperformance 不实施 | nonperformance 不实行

3. nonperformance

3. 不实行：nonperformance 不实施 | nonperformance 不实行 | nonpersistent 非坚持

4. 不履行/不实行/不实施：nonpenerative /非贯穿的/ | nonperformance /不履行/不实行/不实施/ | nonperiodic /非周期的/

1. failure to act with the prudence that a reasonable person would exercise under the same circumstances

    Synonym: negligencecarelessnessneglect