Whether you call it decline or not, the moaners are on to something: America has indeed produced many of the innovations that have made their way into global (and British) English, for better or worse.

论你是否称其为衰落，抱怨者都在谈论某：美国确实产生了许多创新， 这些创新已经球（和英国）英语， 论好坏。