黛安娜表示她对萨姆的爱永远不会变。用英语怎么说？

黛安娜表示她对萨姆的爱永远不会变。

Dianne declared her undying love for Sam...

declared

adj. 公告的，公然的；v. 宣布( declare的过去式和过去分词 )，断言，申报（收益），板球（在击球员还未全部出局时）宣布结束赛局；

例句
In answer to speculation that she wouldn't finish the race, she boldly declared her intention of winning it.
为了回应她会中途退赛的猜测，她大胆地宣布她要赢得这场比赛。

her

pron. (she的宾格)她，(she的所有格)她的，她，指某个国家，（一艘）船；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

undying

adj. 不死的，不朽的，永恒的；

例句
...declarations of undying love.
至死不渝之爱的告白

love

vt.& vi. 爱，热爱，爱戴，喜欢，赞美，称赞；vt. 喜爱，喜好，喜欢，爱慕；n. 爱情，爱意，疼爱，热爱，爱人，所爱之物；

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

Sam

n. 均湿，受潮，（木材）回潮；

例句
Eventually Sam persuaded her to accept an offer of marriage...
最终萨姆说服她接受了求婚。