It would be my pleasure to attend your party.

我很荣幸能参加您的聚会。

It would be my pleasure to…这样的句型在英语中很常用，表示“做......是我的荣幸”之意，也有“能……我感到很高兴”的含义。此外，这一表达 还可以用来回答Thank you...的句子。

We are delighted to accept your invitation to the 10th Anniversary party of your company.

我们荣幸地接受您的邀请，参加贵公司10周年庆典。

I will definitely attend your Christmas party.

我很荣幸能参加您的圣诞节聚会。

I'm afraid I cannot make it.

恐怕我无法参加。

make it的意思是“按时到达；参加”。让我们看看在拒绝邀请的时候还可 以用到的表达。

Thank you for inviting me but I'm afraid I cannot make it.

感谢您的邀请，伹是恐怕我无法参加。

I'm sorry but I'm going to have to turn down your invitation.

很抱歉，我无法接受您的邀请。

Unfortunately I will not be able to attend the party.

很不巧，我无法参加聚会。