十天前后
shí tiān qiánhòu
About ten days
两点前后到
liǎng diǎn qiánhòu dào
Arrive at about two o'clock
前后两排
qiánhòu liǎng pái
The front and back rows
事情的前后
shìqíng de qiánhòu
The before and after of the matter