Across
- 4. Producing a large amount of money; making a large profit
- 5. Doing something without thinking carefully
- 8. The pure mathematics of points and lines and curves and surfaces
- 12. An adjective relating to or concerned with machinery or tools
- 13. Thinking about past events or situations
- 17. Designed to be suitable for a wide range of situations or needs
- 19. A Combination of events, etc., that causes a particular result
Down
- 1. Required by law or rules，compulsory
- 2. To make something less important
- 3. Frightening in a way which makes a person feel less confident
- 6. Overcome by superior force or too many tasks
- 7. Misunderstanding
- 9. A process in which something passes by degrees to a different stage
- 10. Thrown awayinferiority The state of having lower rank or level
- 11. Something that is unpleasant or dangerous and develops gradually without being noticed.
- 14. A conventional or formulaic conception or image
- 15. An amount of money or property left by someone in a will
- 16. Promise solemnly and formally
- 18. Change liquid into gas or steam