听到孩子咯咯的笑声，大多数家长的脸上都会扬起微笑，但母亲Sarah Cross却害怕听到儿子Sam的笑声。
The sound of their child giggling would make most parents smile but it is one that Sarah Cross dreads.
他再次看着洛根，扬起眉毛，给了她一个大大的微笑。
Again he looked at Logan, raised his eyebrows and gave her a big smile.
科技公司 UneeQ 正在开发他们的“数字人类”，他们在屏幕上看起来像真人，不仅在语言方面，还有面部动作：扬起的眉毛、一个微笑，甚至是一个点头。
Tech company UneeQ is heading for its "digital humans", which appear life-like on the screen not only in terms of language, but also because of facial movements: raised eyebrows, a smile, even a nod.
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