甲烷没有极性。

And so, methane is nonpolar.

youdao

磁铁具有极性。

A magnet has polarity.

youdao

由于水具有极性，所以它可以分解或溶解成固体和气体。

Because water is polar, it can break down, or dissolve, both solids and gases.

youdao

We can say that a nonpolar molecule you can have as a result of two different conditions.

所以你可以说非极性分子,有两种构成方式。

麻省理工公开课 - 固态化学导论课程节选

We only have the one bond so the actual HF molecule is polar, it has a net dipole.

但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。

麻省理工公开课 - 固态化学导论课程节选

Different kinds of polarity form, there's a head, and there's a tail, there's a back, there's a front, there's a left side and there's a right side.

不同的极性开始形成,有头端,也有尾端,有后面,也有前面,有左侧,也有右侧

耶鲁公开课 - 生物医学工程探索课程节选