Contents目录
Part 1 general functions功能会话Unit 1 greetings and introductions问候与介绍Unit 2 asking for and giving directions问路与指路Unit 3 seeking and giving information
Part 1 general functions功能会话Unit 1 greetings and introductions问候与介绍Unit 2 asking for and giving directions问路与指路Unit 3 seeking and giving information