Unit 1 Abstract摘要
Unit 2 Application Letter申请信
Unit 3 Resume简历
Unit 4 Memo备忘录
Unit 5 Contracts and Agreements合同协议
Unit 6 Complaints抱怨与投诉
Unit 7 Apologies致歉
Unit 8 Congratulations恭贺
Unit 9 Notice and Announcement通知与启事
Unit 10 Invitation邀请
Unit 11 Letter of Thanks致谢信
Unit 12 Agenda and Schedule日程安排
Unit 13 Business Reports商务报告
Unit 14 Business Proposal商务建议书
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