YOU SAID:
When I am preparing for JLPT N4 exam, X is the hardest thing for me to learn
INTO JAPANESE
JLPT N4 試験の準備をしているとき、X を学ぶのが最も難しいことです
BACK INTO ENGLISH
Learning X is the most difficult thing when preparing for the JLPT N4 exam
INTO JAPANESE
戦争の最大の困難だ
BACK INTO ENGLISH
That is the most difficult thing about war.
INTO JAPANESE
戦争の最大の困難だ
BACK INTO ENGLISH
That is the most difficult thing about war.
Well done, yes, well done!