Every April, there is a special day in China.

每年四月，在中国有一个特殊的日子。

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This is a special day in the history of our country.

今天是我国历史上一个特殊的日子。

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I hear there is a special day in China for planting trees.

我听说中国有一个特殊的植树的日子。

youdao

This is the day when many people will be going out on a date with someone special in their lives.

VOA: special.2011.02.09

I've heard that there is a very special day called "Red Nose Day" in England.

我听说英国有一个特殊的日子叫做“红鼻子日”。

英国的慈善事业 - SpeakingMax英语口语达人

Today is a special day for me in tennis, even if I lost that match.

BBC: Wimbledon 2010: Roger Federer survives massive scare

As we continue our important work to honor and strengthen our nation to nation relationship, the White House Tribal Nations Conference stands out for me as a special and meaningful day in 2012.

WHITEHOUSE: Looking back at the 2012 White House Tribal Nations Conference | The White House

Organization, in collaboration with the EEAA, Ministry of State for the Environment, of a special day for Biosphere Reserves, in view of celebrating the fortieth anniversary.

UNESCO: Post-Conflict and Post-Disaster Responses