鬣狗“呜呜”叫声是由一轮发音而形成的一系列不连贯的呼唤，可以传播到两英里以外。
The hyena's whoop vocalization is a series of discrete calls produced in about of sound that can travel distances of more than two miles.
IELTS口语考试有四个评分标准：流利程度和连贯性、词汇量、语法结构及精确度、发音。
To bring Pronunciation into line with the other Speaking assessment criteria such as fluency & coherence, lexical resource and grammatical range & accuracy, we’ve revised the pronunciation scale.
IELTS口语考试有四个评分标准：流利程度和连贯性、词汇量、语法结构及精确度、发音。
To bring Pronunciation into line with the other Speaking assessment criteria such as fluency & coherence, lexical resource and grammatical range & accuracy, we’ve revised the pronunciation scale.
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