It often seems a thin line between love and hate, and now scientists think they know why.

人们常说：“爱恨只在一线间”，现在科学家找到了其中的原因。

youdao

It often seems a thin line between love and hate, and now scientists think they know why.

人们常说：“爱恨只在一线间”，现在科学家找到了其中的原因。

youdao