a lot of```lot of .a lots of .few .a few .a number of ,the number of 的用法,区别?

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a lot of```lot of .a lots of .few .a few .a number of ,the number of 的用法,区别?

a lot of=lots of,很多的,没有a lots of的说法.few表示否定,几乎没有,后面接可数名词,比如there are few people in the room.房间里没人.a few,表示几个.他们和little/a little对应,只是这两个词后面接不可数名词,比...