His research brought about a significant leap forward in science.

His business made a big leap forward this year.

He played a supporting role in the movie.

The Vermilion Bird is one of the four gods of China, symbolizing the south.

I saw a Yakusugi on Yakushima.

He promised to keep his election promises.

He publicly promised educational reform in the election.

I plan to go to the public notary's office tomorrow.

We started cooking for ourselves to save money.

I think this sentence is a mistranslation.