Since it's too hard to count letters, we count sentences instead.
由于很难计算字母数目，我们以计算句子数目做为替代。
Listen again. Listen carefully. This time you should count how many sentences they say.
我们再来听一遍仔细听，这一次你们要数一数这两位小朋友一共说了几句话？
Listen again. Listen carefully. This time you should count how many sentences they say.
我们再来听一遍仔细听，这一次你们要数一数这两位小朋友一共说了几句话？
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