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.

我们的野餐计划取决于明天是否天晴。

Our picnic plans are ___contingent on the weather being clear tomorrow.

这个代表团的成员来自五个不同的国家。

The ___contingent consists of members from five different countries.