Néng fǒu shǎngguāng, cānjiā běn zhōu liù de diǎnlǐ?
Could you honor us by attending this Saturday's ceremony?
Tips
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赏光 is formal and polite — used in invitations and when requesting someone's honored presence. It implies the guest's coming is a gift (赏 = to bestow; 光 = light/honor). Informal Chinese simply uses 来 (to come).