| up in the air | (=not settled, undecided, uncertain) | 미정인 |
|---|---|---|
| The proposal to build a golf course next to the airport is still up in the air. | ||
| use up | (=consume completely) | 다 써버리다 |
| The kids used up all their money playing video games. | ||
| up to date | (=modern) | 최신의 ≠ out of date (=old-fashioned) 구식의 |
| The equipment here is really up to date [out of date]. | ||