jù huì
老同学聚会在一起很不容易。
lǎo tóngxué jùhuì zài yìqǐ hěn bù róngyì.
It's not easy for old classmates to get together for a reunion
明天有个聚会，你参加不参加？
Míngtiān yǒu gè jùhuì, nǐ cānjiā bù cānjiā?
There's a party tomorrow, are you going to attend or not?