In it, a mother is asked to interact with her child in a normal way before putting on a blank expression and not giving them any visual social feedback.

实验中，一位母亲被要求以正常的方式与她的孩子互动，然后面无表情，不给他们任何视觉上的社交反馈。

youdao

One mother, filling out the form for her son, wrote in the blank next to Sox: Usually brown.

一位母亲在为她的儿子填写表格时，在袜别的那栏填上了：棕色为主。

youdao

Looking back, as I was saying, into the blank of my infancy, the first objects I can remember as standing out by themselves from a confusion of things, are my mother and Peggotty.

就像我曾经常说的，回顾空白的幼年时代，我模糊的记忆中记得最清楚的人是我的母亲和辟果提。

youdao

His skin was pale, he was trembling, and though he was seven years old he seemed to his distraught mother as vulnerable as a newborn the whorls of his ears almost translucent, his eyes wondrously blank.

NPR: In 'Challenger Park,' Mom Is an Astronaut