Speech disorders may be problems ...with the pitch, volume or quality of the voice.
言语紊乱可以是与声音的形成方式有关的问题，称为发音紊乱或语音紊乱，或者是在音高、音量或声音质量上有困难。
Let's get on to the sixth characteristic of speech, volume.
现在我们继续来看第六个特征——音量。
Your voice and the volume of your speech convey a strong impression.
你的声音和你说话时的音量可以给人留下深刻印象。
Your voice and the volume of your speech convey a strong impression.
你的声音和你说话时的音量可以给人留下深刻印象。
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