婴儿可以分辨出响亮的声音和人声。
Babies can tell the difference between loud sounds and voices.
移动图像的直接性和人声音的影响是强有力的。
The immediacy of the moving image and the impact of the human voice is powerful.
这就是为什么机器人语音听起来很生硬，明显和人声不同。
This is why robotic voices often sound monotonous 4 and decidedly different from humans.
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