A new mother,for example, quickly learns to try to sleep when her baby is quiet, even in the middle of the day.

VOA: special.2010.01.31

So for those of you who haven't read, Richard's father works nights and sleeps during the day, and during the day the children therefore have to be very quiet.

可能有人不清楚，理查的父亲日出而息，日落而作，因而小孩白天不敢出声。

耶鲁公开课 - 1945年后的美国小说课程节选

The sewing machines are quiet now, but soon the owners hope, 3,000 pairs of boots a day will be produced here.

VOA: standard.2010.07.06