可以单独调整难度，每个孩子都有一些。
The difficulty level can be adjusted individually – there is something for every kid.
灯架可水平方向自由旋转，每盏灯头可垂直方面单独调整方向。
Lamp frame can rotate horizontal freely, each lamp can vertical adjust lonely.
不建议采用后一种做法，因为将会无法对每个数据库进行单独调整。
The latter practice is discouraged, because you will not be able to individually tune each database.
应用推荐