Those books can go unmarked, those markets unanalysed, that coronary unperformed.
书可以不署名，市场分析可以不做，甚至冠心手术也可以不做。
2
An executory contract applies to a contract that is still partially or entirely unperformed by one or more parties.
待履行的合同是指一方或多方当事人部分未履行或完全未履行的合同。
3
After the Performance Certificate has been issued, each Party shall remain liable for the fulfillment of any obligation which remains unperformed at that time.