异性

wǒ xiǎng jiāo ge yì xìng péng you

我想交个异性朋友。

I want to make a friend of the other sex.

tā jué de hěn nán hé yì xìng jiāo tán

她觉得很难和异性交谈。

She found it difficult to talk to members of the opposite sex.

wǒ men hē zuì shí gǎn dào yì xìng gèng jù xī yǐn lì

我们喝醉时感到异性更具吸引力。

We find members of the opposite sex more attractive when under the influence.

yì xìng diàn zǐ

异性电子

unlike electric charge

tóng xìng diàn hè xiāng chì ér yì xìng diàn hè xiāng xī

同性电荷相斥，而异性电荷相吸。

Like electric charges repel each other and unlike ones attract each other.