In the first study, three-year-olds watch two videos shown side by side.

在第一项研究中，三岁的孩子们观看了并排播放的两段视频。

youdao

In the first study, three-year-olds watch two videos shown side by side.

在第一项研究中，三岁的孩子们观看了并排播放的两段视频。

youdao