“举行开幕典礼”常见的英文表达是 hold/stage/conduct the opening ceremony 。
例句：
The city will hold the opening ceremony of the new sports stadium next week.（这座城市将于下周举行新体育场的开幕典礼。）
They are planning to stage a grand opening ceremony for the new shopping mall.（他们正计划为新购物中心举办一场盛大的开幕典礼。）
The organization decided to conduct the opening ceremony in a simple yet meaningful way.（该组织决定以一种简单却有意义的方式举行开幕典礼。）