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(huì)讓我們?cè)谙挛?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.