I have this problem too, I forget the words very quickly. So, I bought a copybook and whenever I see a new word for me, I write this word on the copybook. I separate the words in alphabetical order and whenever I write a new word, I read the previous words of the page. Doing this, after a little time you will record the 1st words. For example: I saw the word "go" and I didn't know what it mean. So, I took my copybook and I wrote "Go = Ir" ( "ir" is the equivalent in portuguese to "go"). One day later, I saw the word "grow" and I didn't know this word also. After I wrote this "grow" in my copybook, I spoke "Go = ir, Grow = crescer". It helps me a lot. Hope this helps. Sorry for my mistakes, I'm learning too.

there are two simple steps.. 1). don't try too hard to memorize them. 2). just keep using them very often. that's all & good luck :)

Learn with a teacher. 跟老师学，尤其是英美国家的老师。

单词的学习掌握以 用 为核心。 单纯的只是拿个生词在死记硬背，事倍功半。 最好结合语境，结合一个短语，一个小段，一篇短文来掌握一组生词。 记单词的时候要知晓单词的意思，及发音，后面就会比较容易记得牢固。 ------ 建议刚开始可以通过多阅读、多听一些 等级适当的英语资源， 然后可以用手机积累里面的生词，接着要定期经常拿出来复习。 我个人经常利用电脑上听看BBC 以及手机上的'沪江听力酷"结合"沪江小D”来 听、看，积累生词。 然后平时利用零碎的时间，比如： 坐公交车、排队等零碎时间，拿出手机复习生词。 一回生二回熟，持之以恒自然而然会慢慢熟记于心，有时候甚至自己忘了这单词的存在，但遇到应景的境况时总会自然而然从心里蹦出。 那种感觉很微妙。 学习贵在方法，难在坚持。 好好加油叻~~同是喜欢英语的小伙伴。 ：D