It's just the same as when you learn new Chinese words.

In order to remember your English vocabulary you can follow 2 methods. First is the repetition-based method, where you learn English words by writing them several times or saying them repeatedly until you remember them all. If you patiently follow the process, you will see your vocabulary extended very well. Secondly, you also need have to have a notebook with your own note-taking rules. Each time you log onto Italki, note down any new words in the Questions and Answers section. The only problem is whether you want a rich vocabulary or not. Your plan should answer 4 questions. 1.How many words will you learn a week: 5, 10, 15 or more? 2. When will you learn them? Every other morning or anytime you feel like learning? 3. How often will you review what you have learnt: weekly, monthly or before a test ? 4. What areas of English will you focus on? Sports, music, games or sciences? The answers may vary from one person to another depending on memory, schedules and interest. You can gain a big vocabulary and improve your English by determining what field of words to learn, making a plan of learning, choosing a learning method and regularly practising your plan and method. Daily vocab learning is better than weekly or monthly. Memorize words by drawing small pictures next to them. Example: for the phrase "make up" draw a coloured picture of a woman's face with lipstick, eye shadow and mascara. "Make up" also means to make friends again after an argument so you need to draw 2 people shaking hands. . http://quizlet.com/subject/english/ is a website with flashcards, memory games etc. Also have a look at www.freerice.com

Learn the words you need to know...for your career, for your life, for your love...for communication. If you knew you were going to use what you just learned the very next day, you won't forget those words. Or you might, but the next two or three times it happens those words are going to stick in your mind a little better.

Reading them in context. writing them in context. Read good literature and write regularly.

Well, if we encounter a new word, it's usually either in a certain context (so we have a small group of known words that we can associate it with), or it's very similar to an existing word.