Example
wǒ我dǎ diàn huà打电话gěi给nǐ你，yī 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liǎo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.