essential to me还是for me

essential to me还是for me essential to还是for show sth for me 还是 to me bring some apples to 还是 (for me )me? the watch is meaningful for me还是to me good luck to me还是good luck for me a letter for me还是a letter to me buy sth to me还是buy sth for me This is a challenge for me 还是to me be essential for/to leave a message for / to me 用for还是to show it to show shop to me 还是 show shop for me