We were obligated to attend the opening ceremony.我们有必要参加开幕式.Many guests were invited to opening ceremony.许多来宾应邀参加了开幕式.The opening ceremony was a fine spectacle.开幕式典礼是个壮观的场面....

opening ceremony的音标：opening ceremony的英式发音音标为：['əupəniŋ 'seriməni]opening ceremony的美式发音音标为：['opənɪŋ 'sɛrəˌmoni]...

开幕式...