1. own:used to emphasize that something belongs to or is connected with a particular person or thing and not any other.

Every dance has its own rhythm.

This is my own bicycle.

I have a own cute cat.

2. experience:knowledge or skill that you gain from doing a job or activity,or the process of doing this.

You’re got a lot of experience of lecturing.

I have not much experience in salesmanship.

I had some experience in salesmanship.

3. effectively:in a way that produces the result that was intended.

Children have to learn to communicate effectively.

You have to learn to do your homework effectively.

How to learn a language easily and effectively?

4. master-mastered

To learn a skill or a language so well that you have no difficulty with it.

The skills needs to master a new language.

I never quite mastered the driving.

I had mastered the cooking.

5. slightly:a little

A slightly different color

She is slightly slim.

The cake is slightly sweet.

6. mad:crazy or very silly

I’d go mad if I was stuck at home all day.

Are you mad?

You made me so mad.

7. rather than:instead of

I think you’d call it a lecture rather than a talk.

I like going shopping rather than do some exercise.

I want to drink coffee rather than tea.

8. argument:a situation in which two or more people disagree,often angrily.

She had a big argument with her husband.

She gets into an argument.

Argument is not good.

9. consider:to think about something carefully.especially before making a choice.

I will have to consider your offer carefully.

I am considering when to go home.

I consider making a girlfriend.

The author told the young woman that the westerner can master Chinese very quickly.But the young woman disagree with him.so the author decided to write this book that how to learn a new language faster and more easily than you ever thought possible.