Phosphorane
正膦
🗣️ 情景例句
How'd you guess?
怎么晓得？
I wonder why they're angry.
伙计，他们为什么生气？
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。