dialect area的用法和樣例：
例句
- In order to solve the problem of communication between people from different dialects areas, we study mandarin.
為了解決來(lái)自不同方言區的人們之間的交流問(wèn)題，我們學(xué)習普通話(huà)。 - Native dialect is the largest obstacle of Putonghua study for the students in the dialectal areas.
母語(yǔ)方言是方言區學(xué)生學(xué)習普通話(huà)的最大障礙。
