The essence of polar conversion is that organic compound reflects the carbon atom electricity in the centre and changes, kiss the electricity or kiss the core coursechanging.
极性转换的本质是有机化合物反应中心碳原子电性发生转换,即亲电性或亲核性发生转换的过程。
2
I received advice from friends and relatives about changing my major and finding another course for my life.
我收到了朋友们和亲戚的建议,他们建议我换专业,为我的人生寻找另一条道路。
3
Changing fashion, of course, does not apply just to dress.