Considerable progress had been made, as a result of which all outstanding issues - some of which had been on the agenda of the International Law Commission for 25 years - had been settled.
这方面已经取得了一些重大进展，由此可以使人们解决所有悬而未决的问题，其中包括25年来一直列在国际法委员会议程项目上的一些问题。