sec

• 形容葡萄酒不甜，带有尖锐、干涩或酸味的口感。

Describes a wine that is not sweet; having a sharp, tangy, or acidic taste.

1. B2formalculinary

   Used to describe a wine or champagne that is moderately dry, containing a small amount of residual sugar.

   半干

   • She prefers sec champagne over the sweeter varieties.
   • The sommelier recommended a sec wine to pair with the fish.
   • This sec sparkling wine has a crisp, balanced finish.

   同义词medium-drysemi-dry

   反义词sweet

• 名词，可以表示时间单位，等于一分钟的六十分之一，也可以表示直角三角形中的三角函数关系。

A noun that can refer to a unit of time equal to 1/60 of a minute, or to a trigonometric ratio in a right-angled triangle.

1. A1formal

   A unit of time equal to one sixtieth of a minute, the basic unit of time in the International System of Units.

   秒

   • The race was won by just a few seconds.
   • Please wait a second while I check the information.
   • The timer counts down from ten seconds.

   同义词second

2. Trigonometric functionC1formalscientific

   The ratio of the length of the hypotenuse to the length of the adjacent side in a right-angled triangle.

   正割

   • The secant of an angle is the reciprocal of its cosine.
   • In trigonometry, sec is often used in advanced calculations.
   • The value of sec(0) is 1.

   同义词secant