Examples
wǒ我dǎ diàn huà打电话gěi给nǐ你，yì fāng miàn一方面shì是xiǎng想qǐng请nǐ你chī fàn吃饭，lìng yī fāng miàn另一方面shì是xiǎng想gào su告诉nǐ你wǒ我ér zi儿子yào要jié hūn结婚le了。
我打电话给你，一方面是想请你吃饭，另一方面是想告诉你我儿子要结婚了。
On the one hand I called you to invite you to dinner, on the other to tell you my son is getting married.
一方面我们虽然蒙受了损失，但另一方面我们从这次经验中学到了很多。
On the one hand we suffered a heavy loss, but on the other hand we learned a great deal from the experience.