official adj. 官方的；正式的；公务的；
例句：
The news is not yet official.
这消息尚未经官方证实。
The official launch date is in May.
正式的发行日期是在五月。
扩展资料
It was her first official engagement.
那是她第一次正式约会。
An official pushed through the throng.
一位官员从人群中挤过。
This was her first official engagement.
这是她的首桩公务。
The companys official retiring age is 65.
公司正式的退休年龄为65岁。
The countrys official language is Spanish.
这个国家的官方语言为西班牙语。
