Chinese people celebrate important birthdays every 10 years—so when young people turn 20, they can expect a big party!

中国人每10年庆祝一次重要的生日——所以年轻人20岁生日时，他们可以期待一场盛大的派对！

youdao

Why do you celebrate two New Years?

你们为什么要庆祝两个新年啊？

youdao

B: We celebrate two New Years.

我们庆祝两个新年。

youdao

The crowds of Christian pilgrims are especially large because for the first time in years, the Eastern Orthodox and Western Churches are marking Easter - the day Christians celebrate the resurrection of Jesus - at the same time.

VOA: standard.2010.04.01

The special performance, on 14 May, will celebrate 10 years of the hit musical at London's Dominion Theatre.

BBC: Freddie Mercury

The parade and congress also celebrate 50 years since Fidel Castro proclaimed that his was a socialist revolution.

BBC: Cuba President Raul Castro seeks 10-year term limits

To celebrate 15 years in business, Boloco organized a series of 15 Free Burrito Days at its various locations.

FORBES: Why Free Is Like Magic: The ROI Of Surprising Your Customers