YOU SAID:

Natural language translation is very hard.

INTO JAPANESE

自然言語翻訳は非常に難しいです。

BACK INTO ENGLISH

Natural language translation is very difficult.

INTO JAPANESE

これはとても難しいです。

BACK INTO ENGLISH

This is very difficult.

INTO JAPANESE

これはとても難しいです。

BACK INTO ENGLISH

This is very difficult.