5月1日用英语怎么说

"What is the English expression for may 1st?"

The English expression for May 1st is "May Day" or "International Workers' Day". It is a holiday celebrated annually on May 1st to commemorate the labor movement and its achievements. This day is recognized in many countries around the world, including Canada, France, Germany, Mexico, Spain, Switzerland, and the United States. In addition to public holidays, May 1st is often associated with demonstrations and strikes by workers across various industries.