我说明你们的职责时，请你们仔细听。
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？
Listen again. Listen carefully. This time you should count how many sentences they say.
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