青云翻译

Not exercise the muscles in the mouth, it is difficult to trained a pure English.

Mouth muscles do not have access to training, is hard to master good English.

The oral area muscle also cannot obtain the exercise, also on very difficult to practice on a pure English.

They are not tempered mouth muscles, and it would be very difficult to train a mouthful of pure English.

Mouth muscles do not have access to training, is hard to master good English.