你们在学校晚上通常几点睡觉？

What time do you usually go to bed on school nights?

据疾病控制中心报道，超过三分之二的高中生每周在学校晚上睡眠时间少于七个小时。

According to the CDC, more than two-thirds of high school students get less than seven hours of sleep on school nights during the week.