I promise you that I would be a guardian angel for you
意思是我向你承诺，我要成为你的守护天使
守护的英文protect。但是连成句子的话有很多说法了
比如说to guard; to defend; to ward; to with 。都是守护的意思
韩语的永远守护挚爱的：
영원히 참 사랑을 지켜 나갈 것이다.
“我会永远守护你”英文是
Let me stand by your hands forever
至于‘fuck you ’则是骂人的话
