Lesson01

1. absolutely correct; making no mistakes
3. so well designed, easy to understand, or easy to use that is cannot go wrong or be used wrongly
5. the object or aim in doing something
7. the area near something or someone
8. a test or trial
10. an ideal, principle, aim, etc, that people support and work for
12. the place to which someone or something is going or being sent
13. to state positively and confidently; to guarantee
14. a process of travelling from one place to another
15. not in the correct key, out of tune
17. keen; enthusiastic; intense
19. the state or quality of being stable

2. to promote or recommend something or someone
4. the range of capabilities that someone or something has; powers or resources not yet developed or made use of
6. doing a job, sport, or activity for money, rather than just for fun
9. to stop shaking or moving about
11. achieving or resulting in the required outcome
16. a substance that is burned to provide heat or power
18. to give something up completely