YOU SAID:

That's deep dude, It must be rough

INTO JAPANESE

それは深いよ、きっと大変だよ

BACK INTO ENGLISH

It's deep, it must be hard

INTO JAPANESE

深いですね、大変でしょうね

BACK INTO ENGLISH

It's deep, it's going to be hard

INTO JAPANESE

奥が深いので大変でしょうね

BACK INTO ENGLISH

It's deep, so it's going to be hard

INTO JAPANESE

奥が深いので大変そうです

BACK INTO ENGLISH

It seems to be difficult because it is deep inside

INTO JAPANESE

奥が深いので難しそうです

BACK INTO ENGLISH

It seems to be difficult because it is deep inside