作陪

míng tiān de wǎn yàn qǐng nǐ zuò péi

明天的晚宴请你作陪。

You're to help entertain the guest at the banquet tomorrow.

tā men qǐng wǒ wǎn shang qù kě wǒ bù yuàn zuò péi

他们请我晚上去，可我不愿作陪。

They have asked me to go round for the evening, but I don't want to play gooseberry.