往国外写信都需要注意哪些？比如格式、文字等。

最关键是字要工整，免得人家看不清

这些应该有学过的吧
下面的信你可以参考
Mr. Steve Pincus
Human Relations
Winfield Medical
100 Main Street
Winfield, FL 09876

Dear Mr. Pincus:

Our last discussion left me thoroughly convinced that I can produce dramatic results for Winfield Medical.

Count on my intelligence, experience, innate "people power," top-notch positioning, negotiation, and follow-up skills to bring in the steady stream of business you seek.

Hire someone with the know-how, the guts, and the goods to succeed. Hire someone as committed to performance as you are.

Hire me.

Sincerely

John Apgood
(555) 456-789 Home Phone
(555) 765-4321 Work Phone