phonetic notation的用法和樣例：
例句
- I did not know about the Wade-Giles or the zhu yin phonetic system to help in recognition and pronunciation.
我并不熟悉如何通過(guò)注音符號去辨認方塊字及學(xué)習發(fā)音。 - The national phonetic alphabet can help primary students understand and grasp the tones of the Chinese phonetic alphabet.
注音符號便于小學(xué)生理解和掌握漢語(yǔ)拼音的聲調。
