Number + 侧
侧 (cè) is a classifier and noun meaning "side." It is used to specify a particular side or flank of an object or location. For instance, 一侧 means "one side," often describing a spatial position relative to something else.
请靠道路右侧行走。
qǐng kào dào lù yòu cè xíng zǒu.
Please walk on the right side of the road.
大楼的东侧有一个小花园。
dà lóu de dōng cè yǒu yī gè xiǎo huā yuán.
There is a small garden on the east side of the building.
他身体左侧受了伤,需要休息几天。
tā shēn tǐ zuǒ cè shòu le shāng, xū yào xiū xī jǐ tiān.
He injured the left side of his body and needs to rest for a few days.