if your child is studying continuously for more than 75 minutes,it is likely that she will get tired and lose her abilit

问题描述:

if your child is studying continuously for more than 75 minutes,it is likely that she will get tired and lose her ability to concentrate hard .

如果你的孩子连续学习超过75分钟,她很可能会觉得累而且会失去集中注意力的能力.