Dmk
[医][=demethylketene]脱甲基乙烯酮
🗣️ 情景例句
I am too, Dad.
我也一样， 爸爸。
I'm a good pianist.
我是一位了不起的钢琴家。
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。