这个中学生有许多英语单词发音不准，必须下狠工夫，学好音标，掌握标准的语音。
This middle school student can't pronounce many English words correctly. So, he has to take great effort to learn the phonetic symbols well and grasp standard English pronunciation.
个人认为，选择合适的影片应当考虑以下几个方面：首先，该影片需要发音标准、语速适中，因为这样对于纠正我们的发音是很有帮助的。
Personally think that the suitable film should consider the following aspects: first, the film needs standard pronunciation, moderate speed because it can correct our pronunciation is very helpful.
首先，细化声韵母，对反映普通话发音准确度的声韵过渡段建立连续高斯混合密度HMM的普通话发音标准度评价系。
The first, By dividing between consonant and vowel of Chinese syllables, we establish a speech distinction system of Chinese pronouncing accuracy using the continuous Gaussian mixture HMM.
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