yī biān
这块木料有一边儿不光滑
zhè kuài mù liào yǒu yī biānr bù guāng huá
This piece of wood has one side that is not smooth
两方面争论，总有一边儿理屈。
liǎng fāng miàn zhēng lùn, zǒng yǒu yī biānr lǐ qū
In a dispute between two sides, one side is always in the wrong
我们打球，他坐在一边看书。
Wǒmen dǎ qiú, tā zuò zài yībiān kàn shū.
We play ball, while he sits on the side reading a book.