题目

    This is a list of the origins of some slang words or phrases that we all use regularly．These words are common in almost all English speaking nations．Cool    Who hasn't used this word at least once in their life when speaking highly of something? This meaning of the word is relatively new in English，but not as new as you might think．The earliest record found so far is from 1884 in the phrase“Dat’s  cool!”Kick the Bucket   This means“to die”．Many people consider the term to have come from a guilty man standing on an upturned bucket which was then kicked out from 人体从外界摄取的食物要依靠           进行消化和吸收。           是消化食物和吸收营养物质的主要器官。青少年应           膳食，合理营养，注意食品安全，保持身体健康。