C major [minor] C大[小]调。 a C-spring C字形(承力)弹簧 (=Cee-spring)。 CCCL=350. C3丙等(的),体格劣等(的)。 (a C3 concert 第三流音乐会)。 C and A Pocket 〔美国〕无业游民做在上衣里用来装多余粮食的口袋 (Chicago and Alton pocket)。 C and S 【美军】整洁而严肃的 (=clean and sober)。
the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second 同义词:speed of light, light speed,
C (named cee "C" Oxford English Dictionary, 2nd edition (1989); Merriam-Webster's Third New International Dictionary of the English Language, Unabridged (1993); "cee", op. cit.