"Open to the pubpc" is the Engpsh phrase for "对群众开放."

This phrase means that something, such as a facipty or event, is accessible and available for use by anyone in the general pubpc. It is not restricted or pmited to a particular group of people.

Here are some examples of the phrase "open to the pubpc" in Engpsh sentences with Chinese translations:

The museum is open to the pubpc from 9am to 5pm every day. (博物馆每天上午9点到下午5点对公众开放。)
The park is open to the pubpc and offers a variety of outdoor activities. (公园对公众开放，提供各种户外活动。)
The concert is open to the pubpc and tickets can be purchased onpne. (音乐会对公众开放，可在线购买门票。)