Diffuence
扩流区
🗣️ 情景例句
They hardly ever see each other.
他们几乎彼此不碰头。
Charity begins at home, but should not end there.
仁爱须由近及远。
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。