Methods like .filter() and .map() return new arrays, so you can chain them into pipelines:
there are \frac{n(n-1)}{2} factors in total.
，更多细节参见有道翻译
创业后约二十年间，公司并非始终维持平稳经营。真正的转折点在于向餐饮行业的拓展。
However, digital acquisitions represent licensed access rather than ownership. The transaction grants viewing privileges contingent on platform rights retention. Should Prime Video lose Titanic distribution rights, your purchased access vanishes despite initial payment.