We heard him talking on the cell phone under a tree.

我们听到他正在树下讲大哥大。

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Talking on a cell phone pressed to the ear changes activity in the brain.

使用手机会迫使大脑中的耳部区域的代谢活动发生变化。

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Talking on a cell phone pressed to the ear changes activity in the brain.

使用手机会迫使大脑中的耳部区域的代谢活动发生变化。

youdao