YOU SAID:

Ooh, that's quite an interesting and broad topic to talk about.

INTO JAPANESE

ああ、それは非常に興味深く、幅広い話題ですね。

BACK INTO ENGLISH

Ah, that's a very interesting and broad topic.

INTO JAPANESE

ああ、それは非常に興味深く、幅広いトピックですね。

BACK INTO ENGLISH

Ah, that's a very interesting and broad topic.