Up high: There was a yellow button at head height to their side to create a clear and obvious movement.

为了表现出清晰和明显的动作，研究人员特意在上方，与头平齐的位置，设置了一个黄色按钮。

youdao

Up high: There was a yellow button at head height to their side to create a clear and obvious movement.

为了表现出清晰和明显的动作，研究人员特意在上方，与头平齐的位置，设置了一个黄色按钮。

youdao