翻译。英文。感谢。

中翻英：（可以口语化一点，没关系。）
你们能如此爽快地接受邀请，我感到非常开心。
你们的表演会被安排在所有选手的演唱结束之后。
我们非常期待你们的表演，希望当晚你们也能过得开心。
此外，学生会那边说，这几天内会给你们正式的书面邀请函。

I feel so glad that you've accepted the invitaion so nicely.

Your show is gonna be after all the shows are over.

I look forward to your show very much and hope your have a good time of your own too.

Besides,students union will send you written official invitaions.

So you can readily accept the invitation, I am very pleased.
Your performance will be arranged for all players at the end of the concert.
We look forward to your show, I hope you can live the night of fun.
In addition, the student union there, said a few days this will give you a written formal invitations

给你正确的翻译下！ 希望能帮助你 谢谢！

im very happy for your coming。
your performance will after all the contestants。
we all long for your performance and hope you can enjoy it。
in addition，the student union will give you Formal written invitation in a few days.

Your ability such generously invite to participate, I feel very happy.