托福听力结构记忆法：讲座类 ... 茛——我们不能把A和B混淆we should not confuse A and B; 腅——A和B是不同的A is different from B; 讲座开始可能教授会说，海豚有很多的发声的方式。我们已经把他们的发声方式分成三种：There e are many types of vocalizations…We’ve characterized their vocalizations into three types: whistles, cliques and burst pulses.) ...
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