Dear Professor Wang,

亲爱的王教授：

I am pleased to inform you that you are cordially invited to participate in the conference of North America as our guest. Your round-trip air ticket, accommodations and meal expenses will be subsidized. Should you be interested, please let us know at your earliest convenience.

很高兴通知您，我们诚挚地邀请您作为贵宾，参加我们北美的研讨会。我们会为您支付往返机票、食宿等费用。如果您感兴趣，方便的话，请尽快与我们联系。

I am looking forward to seeing you in this conference, and I am sure you will play an important role in the event. If your response is consenting, I'll send the relevant information to you.

期待您能出席会议，并且相信您会在此次会议中扮演重要的角色。如果您同意，我会把相关资料寄给您。

Sincerely yours,

NS Sponsor

NS 主办者 谨上