And it is all right to draw a line down the middle of the ro

我觉得需要原句来把握这句话的意思~
我看到一个句子是这样的：
And it is all right to draw a line down the middle of the room,but when he wants to crawl under the covers with you because he s scared,I hope you'll let him.
翻译：即使你在卧室中间划一条分界线也没关系.可是,当弟弟因为害怕而要爬进你的被窝时,我希望你会接纳他.
如果没有原句,意思的把握上会有很大的出入~