| A | B |
| to break down | to stop working |
| to break off | to remove part of something by force |
| to come about | to happen |
| to come up with | to find or produce a solution, answer, theory or idea |
| extraordinary | very much greater or more impressive than usual |
| to figure out | to work out an answer or solution to a problem |
| to get away | to leave or escape |
| grain | a single very small piece of a substance such as sand or salt |
| to identify | to recognize and correctly name someone or something |
| to leave out | not include |
| pattern | regular shapes, colors, or lines on a surface, usually as decoration |
| professional | someone who earns money by doing a job, sport, or activity that other people do for fun, opposite of amateur |
| regulation | an official rule or order |
| significant | having an important effect or influence |
| theory | an idea about something about life or the world, especially an idea that has not yet been proved to be true |