国際 こくさい連合 れんごう環境 かんきょう開発 かいはつ会議 かいぎだったら
kokusairengōkankyōkaihatsukaigidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 国際連合環境開発会議

1. If it were the United Nations Conference on Environment and Development; If the United Nations Conference on Environment and Development happened

Tara Conditional