1. ((through)) an oversight
    • 防災対策に手抜かりがあった
    • There were some oversights in the measures taken to prevent disasters.
    • 家主の側の重大な手抜かりで火災が発生した
    • A fire broke out through a serious oversight on the part of the landlord.
    • 手抜かりのないようめいめい十分に注意してもらいたい
    • I want each one of you to be careful so that there will be no slipups [mistakes/slips/hitches].