Jeans are not appropriate for a formal party.

正式聚会上穿牛仔裤不合适。

《牛津词典》

Appearing at such a formal party for the first time, I felt out of place and wanted to flee.

第一次出现在这样一个正式的聚会上，我感到很不自在，想要逃离。

youdao

A school prom is a formal party to celebrate an important date at school, such as the end of high school or completing school exams.

学校舞会是一个正式的聚会，以庆祝学校的一个重要日子，如高中毕业或完成学校考试。

youdao

And Richardson is characteristically amazing: she brings a touch of humanity to this rather formal party.

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However, Rodenberg says it is important remember that the state of New Jersey is not a formal party to this lawsuit.

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The parties have been allocated 80 of the 200 seats in the new congress, whereas the remaining 120 will go to individuals without formal party affiliations.

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