Meaning of yī miàn:
yī miàn
一面
Noun
one side; one aspect; one's whole face
Tā yībiān cā zhuōzi, yīmiàn kànzhe chuāngwài de fēngjǐng.
她一边擦桌子，一面看着窗外的风景。
She was cleaning the table while watching the scenery outside the window.
Shēnghuó yǒu hěnduō yīmiàn, kuàilè hé fánnǎo dōu cúnzài.
生活有很多一面，快乐和烦恼都存在。
Life has many aspects, both joy and trouble exist.
Tā duìzhe jìngzi wēixiào, kàn dào le zìjǐ kāixīn de yī miàn.
她对着镜子微笑，看到了自己开心的一面。
She smiled at the mirror, seeing her happy face.
Conjunction
simultaneously... (and...)
Wǒ yī miàn tīng yīnyuè, yī miàn zuò zuòyè.
我一面听音乐，一面做作业。
I am listening to music while doing homework.
