open house

剑桥词典

[ 可數名詞：有複數形式的名詞 ] 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
（學校、大學、工廠等接受公衆蓡觀的）接待日，開放日
[ 可數名詞：有複數形式的名詞 ]
a time when a house or apartment that is being sold can be looked at by the public
（爲房屋出售設的）看房時間
[ 不可數或單數名詞：沒有複數形式的名詞 or 單數名詞 ] UK
a situation in which people welcome visitors at any time
隨時開放；隨時歡迎來客
We keep open house , so come and see us any time . 我們隨時歡迎來訪，什麽時候來看我們都行。 返回 open house