Ignorantness
无知
🗣️ 情景例句
Grandpa really loves his family, doesn't he?
爷爷确实很爱这个家， 是吗？
In college I majored in economics, What was you major?
大学时我主修经济，你主修什么呢？
it has to develop (partly by means of touch) the ability to judge roughly three-dimensonal distances.
儿童必须发展（部分通过触觉）粗略判断三维空间距离的能力。