In the later period, easy is both an adjective and an adverb, so why use easy when it is used as an adverb, such as learning English easily?

When used as an adverb, easy is literally synonymous with easy. However, the information content of easy is relatively large; Moreover, as an adverb, relaxed is more like an adverb in the traditional sense. That is, easy can be placed before the modified verb, such as: I can easily throw a three-pointer At this time, it can't be replaced by easy. You can also learn English easily here.

In general, examples of easy adverbs are as follows:

Relax, relax.

Laughter comes easily. (It means easy here)

Take it easy on this matter.

Pay a small fine and get away easily. (American traditional dictionary)

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