地点：
在北京展览馆 in Beijing Exhibition Center 在和平宾馆 at Peace Hotel
在和平饭店十三楼 at th Floor，Peace Hotel在寓所 at home
在主楼 房间 at Room Main Building在接待室 at the reception room
取消或推迟邀请：
很遗憾由于…不得不推迟…
regret that owing to …they have to postpone…
不得不延期原定……的鸡尾酒会至……
be obliged to put off the cocktail party arranged for… until…
取消定于……的……邀请 cancel(recall his invitation for… on…)
重新发出邀请 review the invitation
