For example, if English is not your dentist will talk to the patient does not understand. But if Thailand has good English, good location and create a lot of revenue.
For example, if English is not your dentist to talk with patients without understanding. But if Thailand speak English well, it will cause a good career and earn more.
As if the dentist to communicate in English not to talk to the patient to understand. But if people in English communication, it will have the good occupation and income.