可以分为以下几类：
1.贸易术语，如FOB、CIF、EXW等；
2.贸易文件，如报关单、发票等；
3.贸易付款方式，如T/T、L/C等；
4.运输方式，如海运、空运等；
5.国际贸易条约，如WTO、GATT等；
6.国际贸易结算，如汇率、外汇等。
1、the world renowned banks.
2、international economic organizations
3、international marketing.
4、international business
5、business contract making
以下是我的回答，外贸英文邮件常用语包括：
Greeting: Dear [Customer Name], hope this message finds you well.
Acknowledgement: Thank you for your inquiry regarding [product/service].
Inquiry Response: We are pleased to offer you our [product/service] at the following details.
Appreciation: We appreciate your business partnership and look forward to further collaboration.
Closure: Thank you for your time and consideration. Looking forward to your reply.
请注意邮件格式、语法和拼写，保持礼貌和专业。使用简洁明了的语言，避免冗长和复杂的句子。确保邮件内容准确、清晰，并符合外贸业务的要求。