| A | B |
| break the mould | to do something completely new |
| to blind someone with science | to confuse someone with your technological knowledge |
| to move with the times | to adopt new fashions and trends |
| to be somebodys guinea pig | to allow somebody to experiment on you |
| once in a blue moon | very rarely |
| turn the clock back | go back in time |
| come down to earth | be realistic |
| reinvent the wheel | rediscover something |
| it does not take a rocket scientist | it does not require a lot of intelligence |
| stand the test of time | last for a long time |