英语翻译
Let the running time be T (n).T (n) ≥ O(n2) means that T (n) ≥ f (n) for some
function f (n) in the set O(n2).This statement holds for any running time T (n),
since the function g(n) = 0 for all n is in O(n2),and running times are always
nonnegative.Thus,the statement tells us nothing about the running time.
----------------这是上下文内容,翻译下这句
This statement holds for any running time T (n),
since the function g(n) = 0 for all n is in O(n2),
特别是对于holds for 我不太理解 还有since