.No cigarette end could give us any clue to or sign of anyone having ever been there.
定义：词依照其表意功能归纳整理出来的类别称为词类或品词（Parts of speech） 词类的历史可以追溯到公元前0年的古埃及，随后跟着语言的演变发展到今天，语言学家就把词确立为八类，称为八大词类或八品词（Eight parts of speech）
我第一次坐飞机(My First Flight) -- :5: 来源： last summer, i went to visit my uncle by air. i had never taken a plane bee. so i was on top of the world at the news. i was too excited to fall asleep the previous night. on the day of flight, the crew took me from my parents to the seat in the plane. luckily my seat was near the window. bee the plane took off, i imagined how nice it would be in the sky. but bee long i was so tired that i couldn't help sleeping. when i woke up, the plane had just landed. isn't it interesting? 飞机 第一次 plane bee不一定有联系，它们之间甚至还可能有一种;离解作用;.低智商的知识型白痴就是例他们能够记住没有逻辑联系的一些事物的很长很长的名单，比如一连串偶然所得的数字或者某个城市的街道名录不过，在生活中，这种惊人的还无法利用，他们好像还被囚禁在记忆的牢笼里，不能重新处理记忆，从而跳出死记硬背数据的圈子
改为：None can deny the importance of money.