At london I am pent up in frowzy lodgings , where there is no room to swing a cat .

在伦敦，我闷守在肮脏的住所里，那地方窄-得没地方转身。

If it is a reptile , and I suppose it is ; for it has frowzy hair and blue eyes , and looks like a reptile .

它是只爬虫吗？我想是的，看看它那邋遢的头发与蓝色眼珠，都像极了爬虫。