Day2- Sleep Helps Us Learn & Tips for better sleep #21天英语听力学习打卡#
打卡日记Day2——SleepHelpsUsLearn&TipsforbettersleepWehumansspendaboutone-thirdofourlivesasleep.Thismaysoundlikealotoftime,butitisnotwasted.【我们人类大约三分之一的时间都在睡觉。这听起来像是一段很长的时间,但并不是浪费。】Sleephelpsusstayhealthy,b