what is difference using of "地" and "得" I have been learning Mandarin since 6 months ago, but i have problem with my title, could you guys make me clear about the difference between them? 

if i have example of sentences like below is wrong:

很快地吃


but it i think if I make sentences like below right

她吃得很快


Because sometimes I was confused when I use "地" and "得" in above sentences, so please kindly help me. Thanks
There are three confusing words in Chinese: "的", "地", and "得".

For "的", it is usually used to describe the words following it. The structure is adj. + 的 + noun, for example, 勤劳的妈妈.

For "地", it is usually used to describe the action following it. The structure is adv. + 地 + verb, for example, 积极地回答问题. So 很快地吃 is correct. In a whole sentence, it might be 他正在很快地吃苹果.

For "得", it is usually used to describe the action before itself. The structure is verb + 得 + adv., for example, 回答得很好, or 吃得很快.