你真好用英文表达是：Its very nice of you；
very ：
adv. 非常; (置于形容词、副词和限定词前)很; 十分; 极; (强调形容词最高级或置于own前)十足; 完全同样。
（图片来自网络侵删）
nice：
adj. 美好的; 令人愉快的; 宜人的; 吸引人的; 用于形容词或副词前以加强语气; 好心的; 和蔼的; 友好的。
相关介绍It's very nice of you to come all the way to see me off
您真好，专程来送别
A: It's very nice of you to say so.
太好了。请允许我对您的成功表示的祝贺。
It's very nice of you to invite me.
承蒙您的邀请，真太好了。
It's very nice to see all of you here.
在这里见到你们大家，真是太好了。（作宾语，代表可数名词。）
Oh, I had no idea it was solate. it's very nice of you to come to see me. I'll soon get better.
噢，没想到这么晚了，谢谢你来看我，我很好就会好些的。
