If you lie in bed for eight hours, you may have rested, but you can still feel exhausted the next day.
如果你在床上躺了8个小时,你可能得到了休息,但第二天仍然会感到疲惫。
He sleeps eight or nine hours a day.
他每天睡八到九个小时。
Usually, you must sleep for at least seven to eight hours every day, or you will get dark circles under the eyes.
通常,你必须每天至少睡7-8小时,否则你会有黑眼圈。
应用推荐