Numeral + 旁 / 旁边
The classifier 旁 (páng) means "side" and is used to indicate a lateral position relative to something. It often appears in compounds like 两旁 (both sides) or 旁边 (beside).
路的两旁种满了樱花树。
lù de liǎng páng zhǒng mǎn le yīnghuā shù.
Cherry blossom trees were planted on both sides of the road.
她坐在我旁边,小声跟我说话。
tā zuò zài wǒ pángbiān, xiǎo shēng gēn wǒ shuōhuà.
She sat next to me and spoke to me in a low voice.
河的两旁都是古老的建筑。
hé de liǎng páng dōu shì gǔlǎo de jiànzhù.
There are ancient buildings on both sides of the river.