The questionnaires have been handed out on the first of May, the first public Open Day of the Shanghai World Expo 2010.

五月的第一天，2010年上海世博会首个公众开放日的问卷已转交。

youdao

Business day means any day from Monday to Friday on which We are open for business in China, but does not include Saturday, Sunday or any public holiday.

营业日指从周一至周五的任何一个本行在中国开门营业的日子，但不包括周六、周日或者任何其他公共假日。

youdao

The same applies to many offices open to the public, which do not have a day of rest.

同样的现象也存在于很多的服务部门，没有一天是可以休息的。

youdao

The room was open to the public all day.

VOA: special.2010.01.07

Starting 12 September, 2011, the National September 11 Memorial will be open to the public, day and night, by timed, advance reservation only.

BBC: 11 September history tour of New York

As her blog and research collection grew, Ebenstein created the Morbid Anatomy Library, a 300sqft space open to the public one day a week, and launched a related lecture and workshop series called Morbid Anatomy Presents in 2009.

BBC: New York City��s most morbid museum

The exhibition is free and open to the public 24 hours a day, every day of the week.

UNESCO: Rites of Life open-air exhibition