Low-density
辅助 Assistant[医]低密度（的）
🧩 词语组成解析
low
[ləu]
adj. 低的，矮小的;楼下的，低洼的;沮丧的;下贱的;
adv. 低声地;谦卑地;底下地;
n. 低点;低水平;牛的叫声;
vi. （牛）哞哞叫;
🗣️ 情景例句
Did you remember your other appointment for today?
还记得今天的另一个约会吗？
He is pinned down by the demonstrators.
他被示威的队伍给钉住了。
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。