该论证旨在确立社会规范的偶然性。
The argument aims to establish the ___contingent nature of social norms.
来自不同国家的代表团参加了这次国际会议。
___Contingents from various countries attended the international conference.
我们的野餐计划取决于明天的天气情况。
Our picnic is ___contingent on tomorrow's weather conditions.