luncheon

n. 午宴,正式的午餐

We were invited to a formal luncheon.

我们被邀参加一次正式的午宴。

Thank you for your luncheon invitation for Sunday afternoon, January the tenth, at one o'clock.

感谢您邀请我（们）出席1月10日（星期天）下午1点举行的午餐。