constant /'konstant; 'kanstant/ adj 1 going on all the time; frequently recurring: 經(jīng)常的; 永恒的; 屢見的; 不斷的： ~ complaints. 不斷的抱怨。 2 firm; faithful; unchanging: 堅(jiān)定的; 忠實(shí)的; 不變的： a ~ friend. 忠實(shí)的朋友。 He has been ~ in his devotion to scientific studies. 他堅(jiān)毅地致力于科學(xué)的研究。 n (maths, phys) number or quantity that does not vary. (數(shù)學(xué), 物理)常數(shù); 恒量; 恒定。 ~ly adv continuously; frequently. 經(jīng)常地; 不斷地; 時(shí)常地。