こう気圧 きあつ環境 かんきょうではありませんでした
kōkiatsukankyōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 高気圧環境

1. Was not a high-pressure environment.; It was not a high-pressure situation.

Past/Perfective
Negative
Polite
Formal Register