a lot ,a lot of ,lots of 还有 plenty of 的具体用法?

a lot ,a lot of ,lots of 还有 plenty of 的具体用法? lot a lot lots of a lot of 的用法 a lot of和plenty of lots of的区别 a lot of ,lots of ,plenty of 的区别? 英语a lot、lots of、a lot of的用法. a lot a lot of lots of 的用法 a lot of、lots of、lot 的用法! a lot/lots of/a lot of/plenty of/many/much 的区分 plenty of 和 lots of 和 a lot of和a lot的区别 a lot of,lots of,plenty of 有什么区别 a lot和 lots of的用法 plenty of是否和a lot of 且lots of用法相同