英语词汇“second”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

sec·ond¹

(sĕkənd)

a. A unit of time equal to one sixtieth of a minute.

b. The time needed for a cesium-133 atom to perform 9,192,631,770 complete oscillations. See Table at measurement.

2. A brief interval of time; a moment. See Synonyms at moment.

3. Mathematics A unit of angular measure equal to one sixtieth of a minute. In this sense, also called arcsecond, second of arc.

[Middle English seconde, from Old French, from Medieval Latin (pars minūta) secunda, second (small part), feminine of Latin secundus, second, following; see SECOND².]

单词	second
释义	sec·ond¹ (sĕkənd) n. 1. a. A unit of time equal to one sixtieth of a minute. b. The time needed for a cesium-133 atom to perform 9,192,631,770 complete oscillations. See Table at measurement. 2. A brief interval of time; a moment. See Synonyms at moment. 3. Mathematics A unit of angular measure equal to one sixtieth of a minute. In this sense, also called arcsecond, second of arc. [Middle English seconde, from Old French, from Medieval Latin (pars minūta) secunda, second (small part), feminine of Latin secundus, second, following; see SECOND².]
随便看	unknowing unknowingly unknown Unknown Soldier unlabored unlace unlade unlaid unlash unlatch unlawful unlawful combatant unlawfully unlawfulness unlay unlead unleaded unlearn unlearned unleash unleavened unless unlettered unlicensed unlike