Sec
Informal
例子
The video buffered for a sec and ruined the punchline.
视频缓冲了一秒钟，结果毁了笑点。
02
SEC, 证券交易委员会
an independent federal agency that oversees the exchange of securities to protect investors
03
正割, sec
ratio of the hypotenuse to the adjacent side of a right-angled triangle
sec
01
干型, 天然型
(of champagne) moderately dry
