音标发音英式音标 [ˈəʊ.pən ˌdeɪ]美式音标 [ˈoʊ.pən ˌdeɪ]英式发音 美式发音 基本解释（學校、大學、工廠等接受公衆蓡觀的）接待日，開放日。同根派生 open day相关词英英字典劍橋英英字典 a day when an organization such as a school, college, or factory allows members of the public to go in and see what happens thereopen day剑桥字典open day柯林斯字典