YOU SAID:
once a big boy ran into a big problem
INTO JAPANESE
大きな男の子が大きな問題に出くわしたら
BACK INTO ENGLISH
If a big boy encounters a big problem
INTO JAPANESE
大きな男の子が大きな問題に遭遇した場合
BACK INTO ENGLISH
If a big boy encounters a big problem
That didn't even make that much sense in English.