收到你的请柬，我非常惊喜。

Shōudào nǐ de qǐngjiǎn, wǒ fēicháng jīngxǐ.

I was very pleasantly surprised to receive your invitation card.

婚礼的请柬已经寄出去了。

Hūnlǐ de qǐngjiǎn yǐjīng jìchūqù le.

The wedding invitations have already been sent out.

如果你没收到请柬，记得提前联系主办方确认。

Rúguǒ nǐ méi shōudào qǐngjiǎn, jìde tíqián liánxì zhǔbànfāng quèrèn.

If you did not receive the invitation card, remember to contact the organizer in advance to confirm.