What does 2sec mean?

First, sec is the abbreviation of the English word second, which can be used as numerals, adjectives, nouns, verbs and adverbs; When used as a numeral, it means: second, rank second (in terms of scale, quality, etc. ).

Second, the SEC is laying off staff. SEC refers to the ratio of the hypotenuse of a right triangle to the adjacent side of an acute angle. Expressed in seconds (angles). Secant and cosine are reciprocal, cotangent and sine are reciprocal.

Thirdly, the sec was established by the Securities and Exchange Commission of the United States in accordance with the Securities and Exchange Act of 1934. It is an independent quasi-judicial institution directly under the United States Federation, responsible for the supervision and management of American securities, and is the highest institution of American securities industry.

Fourth, search engine conversion SEC English full name searchengineConvert, its Chinese meaning is search engine conversion. Among the advertising promotion methods of search engines, there are mainly SEO and SEM, and SEC is a search engine advertising optimization service that emphasizes the direct realization of conversion goals.