在读书的时候，我手中总是拿辅音音标发音着一本字典。
对英语国际音标发音掌握不好，分不清美国口音还是英国口音。
They fail to master the international phonetic symbols and distinguish the American from the English pronunciations and tones.
大脑起初将接收到的不熟悉发音标示为无差别的神经活动。
Exposure to unfamiliar speech sounds is initially registered by the brain as undifferentiated neural activity.
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