Shenzhen - Post Report Question and Answers
How much of the local language do you need for daily living? Are local language classes/tutors available and affordable?
You can survive without speaking Mandarin, but your quality of life will be greatly enhanced in proportion to how much of it you do speak. Language classes are a very wise investment, especially if you plan to stay for the medium- or long-term. Get started as soon as possible. - Sep 2015