At about age 15 or so, the men voluntarily began cutting down their nightly sleeptime because of pressures from school, work, and other activities.
在大约15岁左右的时候,由于学校、工作和其他活动的压力,这些男性自愿开始减少夜间睡眠时间。
2
But at about age 15 or so, the men voluntarily began cutting down their nightly sleeptime because of pressures from school, work, and other activities.
但在大约15岁左右的时候,由于学校、工作和其他活动的压力,这些男性自愿开始减少夜间睡眠时间。
3
Create a routine for the children -especially sleeptime.