Definition: when you do not do something that you are expected to do Level: B2
未能按时提交报告会延误整个项目。
___Failure ___to ___submit the report on time will delay the entire project.
他未能参加那次重要会议，这让他的经理很不高兴。
His ___failure ___to ___attend the important meeting upset his manager.
医生未能给出清晰的解释，这让病人感到担忧。
The doctor's ___failure ___to ___provide a clear explanation worried the patient.
