Unit 3 is an important part of the second edition of Practical English for Cross-border E-commerce. In this unit, learners will acquire essential vocabulary and useful sentence structures for conducting successful transactions in the e-commerce industry.The unit begins with an overview of the key terms related to order processing and logistics. Learners will familiarize themselves with phrases such as “place an order,” “confirm the order,” “packaging and labeling,” and “shipment tracking.” Understanding and being able to use these terms correctly is crucial for effective communication in cross-border e-commerce.Next, Unit 3 presents various customer service scenarios, enabling learners to improve their communication skills when dealing with inquiries and complaints. It covers useful expressions for responding to customer queries, addressing grievances, and providing solutions. Mastering these language skills is essential for maintaining customer satisfaction and building long-term relationships in the e-commerce field.Furthermore, this unit also introduces negotiation strategies and key phrases for conducting successful business negotiations. Learners will be taught how to bargain, make counteroffers, and reach a mutually beneficial agreement. These negotiation skills are essential in achieving competitive prices and ensuring profitable business deals.In addition to vocabulary and sentence structures, Unit 3 incorporates listening and speaking exercises to enhance learners’ oral communication abilities. These exercises offer opportunities for learners to practice using the newly acquired vocabulary and phrases in a simulated e-commerce environment.Overall, Unit 3 of Practical English for Cross-border E-commerce, second edition, provides learners with valuable knowledge and practical skills to excel in the e-commerce industry. By studying and mastering the content of this unit, learners will be well-prepared to effectively communicate, negotiate, and provide excellent customer service in the dynamic world of cross-border e-commerce.。