日米 にちべい修好 しゅうこう通商 つうしょう条約 じょうやくだろう
ni chibe ishū kō tsūshōjōyakudarō

Noun
Da Copula

Expresses probability ("probably…") of 日米修好通商条約

1. Probably the Treaty of Amity and Commerce between Japan and the US.

Presumptive
Conjecture