Despite the accident, the driver remained conscious throughout and was able to describe what happened.

conscious 是形容词，由词根 sci（知道、了解）加上前缀 con-（完全）和后缀 -ous（具有...性质的）构成，字面意思是"完全知晓的"，引申为"有意识的、清醒的"。 在医学语境中，conscious 特指"神志清醒的"，与 unconscious（无意识的）相对。