graduate open house event是什么

graduate open house event是什么 open house与广告有关 开放日 OPEN HOUSE怎么样 English help wanted.What is the meaning of house open or open house? he bought a house the window open.改为被动句 如果看到某标志上写open house, graduate是什么意思 graduate recruitment graduate studay post-graduate和post graduate OPEN open open open open open open open