YOU SAID:
Machine translation is a very difficult problem to solve.
INTO JAPANESE
機械翻訳は解決が非常に難しい問題です。
BACK INTO ENGLISH
Machine translation is a very difficult problem to solve.
INTO JAPANESE
機械翻訳は解決が非常に難しい問題です。
BACK INTO ENGLISH
Machine translation is a very difficult problem to solve.
You've done this before, haven't you.