例句：

　　一天的教學(xué)在下午4點(diǎn)左右結(jié)束。

　　The teaching day finishes at around 4pm

　　哦，那些書！我本來要在下午之前收起來的。

　　Oh, those books! I meant to put them away before this afternoon.

　　人體生物鐘會讓我們在下午1點(diǎn)到3點(diǎn)之間感覺沒精打采、昏昏欲睡。

　　The body's natural rhythms mean we all feel dull and sleepy between 1 and 3pm.