Common areas such as the dining room and library are located at the lower storey, while above, upper floors accommodate private bedrooms and bathrooms.
餐厅和图书馆等公共区域都位于较低层,而较高楼层则作为私人卧室及浴室。
It says that function, f of x, is bounded above here's an upper limit on it, that this grows no faster than quadratic in n, n squared.
这意味着这个方法f是有上限的,这个方法增长的速度,不会比括号内的n*n快。
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