| A | B |
| vehicles | things that carry people and things |
| estimates | say approximately |
| engines | things that provides power for motion |
| harm | damage |
| interest | money paid for borrowing |
| loans | money that must be paid back |
| maintain | take care of something |
| decrease | to become less |
| meanwhile | at the same time |
| competition | a situation where people or organizations compete |
| fuel | substance used to provide energy or power |
| passenger | person who rides in a vehicle |
| income | money earned |
| association | group of people with shared interests |
| borders | lines that divide countries |