conscience n. 良心，道德心
例句：Ariel gave him back the money she's stolen for the sake of her conscience.
為了不受良心的譴責，艾莉爾把從他那偷來的錢還給他了。

conscientious adj. 盡責的
例句：We should be conscientious to our work.
我們應該對工作負責。

conscious adj. 有意識的，有知覺的，故意的，羞怯的
例句：I suddenly became conscious that someone was looking at me.
我突然意識到有人在看著我。

unconscious adj. 不省人事，未發覺的，無意的
例句：Tyler was quite unconscious of being remarkable among the local inhabitants.
泰勒并不知道自己在當地居民中間十分惹人注目。

consciousness n. 意識，知覺，自覺，覺悟，個人思想
例句：Carina had a consciousness that someone else was in the dark room.
卡瑞娜有一種感覺：漆黑的房間里還有別人。