official visit
正式───formal;访问───visit
The occasion requires formal dress.───这场合要求穿礼服.
Kennedy had no formal training as a decorator.───肯尼迪没有接受过做油漆匠的正规培训。
dressed in formal evening attire───穿着晚礼服
You'll have to mind your p's and q's with them; they are very formal people.───他们那些人都很拘谨, 你同他们打交道一定得小心谨慎.
Formal talks are still said to be a possibility, not a probability.───据称正式会谈仍有可能，但可能性不大。
The letter is written in a formal style.───这封信是用正式文体写的.
There was no formal training; they learned on the job.───并没有正式的培训；他们是边干边学的。
I am offended that your entertainment expert should make such a mistake and hereby request a formal apology.───令我感到气愤的是，你们的娱乐节目专家竟然会犯这样的错误，我特此要求你们向我正式道歉。
The dinner was a formal affair.
Formal communication channels are usually vertical.
They agreed to draw up a formal agreement.
He gave a formal bow and left the room.
Learning was by rote and strictly formal.