用户可以将任何配件直接插到球上，比如学习用的台灯或者手机充电器。
The user can plug any accessory directly into the ball, like a lamp to study or a cell phone charger.
就拿一位年轻女士来说吧，她在学习上困难重重，自从换了一个好点儿的台灯并把书桌搬离开床边后，她在学习上就取得了长足进步。
For example, a young woman who had difficulty studying made dramatic strides when she got a better desk lamp and moved her desk away from her bed.
台灯放在我的书桌上，好让我晚上可以学习。
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