circa

prep (Latin 拉) (abbrs 缩写 c, ca) (with dates) about （与日期连用）大约: born circa 150 BC 生於公元前约150年.

cigarette-lighter (also lighter), cigarette-paper, cinch, Cincinnati, cinder, cinder-track, Cinderella, cine-, cine-camera, cine-film, cine-projector, cineast, cinema, cinematic, cinematographer, cinematographic, cinematography, cinnamon, cipher, cipher (also cypher), circle, circlet, circuit, circuit training, circuit-breaker, circuitous, circuitously, circuity, circular, circular saw, circularity, circularize, -ise, circulate, circulation, circulatory, circumcise, circumcision, circumference, circumflex, circumlocution,