open house

剑桥词典

[ 可数名词：有复数形式的名词 ] mainly US (UK usually open day)
a day when an organization such as a school , college , or factory allows members of the public to go in and see what happens there
（学校、大学、工厂等接受公众参观的）接待日，开放日
[ 可数名词：有复数形式的名词 ]
a time when a house or apartment that is being sold can be looked at by the public
（为房屋出售设的）看房时间
[ 不可数或单数名词：没有复数形式的名词 or 单数名词 ] UK
a situation in which people welcome visitors at any time
随时开放；随时欢迎来客
We keep open house , so come and see us any time . 我们随时欢迎来访，什么时候来看我们都行。 返回 open house