Did you receive our official invitation?

你有没有收到我们的正式邀请函？

youdao

May I see your official invitation letter?

我能看下你的官方邀请函吗？

youdao

Google has yet to offer an official invitation but Lunch 2.0 is spreading to other cities, including Los Angeles and Seattle.

谷歌目前尚未发出正式的免费午餐会邀请，但“午餐2.0”的模式正在蔓延至洛杉矶和西雅图等美国其它城市。

youdao

Clinton said Indian Prime Minister Monmohan Singh, with whom she met earlier Monday, had accepted an invitation from President Obama to visit the White House November 24 for the first official state visit for the Obama administration.

VOA: standard.2009.07.20

The tag line associated with the official invitation is fueling speculation over the much-rumored iPad Mini.

FORBES: Apple's iPad Mini - Who Wins, Who Loses?

For a first-timer, it was something akin to an out-of-body experience when I was presented with an official invitation to play.

CNN: The allure of Augusta: Savoring the Masters magic

After all, the Colombian move has been an official invitation to mingle in Colombian affairs and might bear more risks than are now perceived.

CENTERFORSECURITYPOLICY: A dangerous dance in Colombia