目录

  • 1 Chapter 6 Business Trade I-1
    • 1.1 Background Knowledge
    • 1.2 Model Conversations
    • 1.3 Vocabulary
  • 2 Chapter 6 Business Trade I-2
    • 2.1 Exercises
    • 2.2 Senario-based Practice
  • 3 Chapter 7 Business Trade II-1
    • 3.1 Background Knowledge
    • 3.2 Model Conversations
    • 3.3 Vocabulary
  • 4 Chapter 7 Business Trade II-2
    • 4.1 Exercises
    • 4.2 Senario-based Practice
Background Knowledge