Example sentences of "must [be] retained for " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | Not only manufacturers are involved ; retailers must ensure that appropriate labels are displayed , and records of furniture supplied must be retained for 5 years and be available for inspection by the Trading Standards Office . |
| 2 | He described the region as one of the few remaining pristine areas of the world , which must be retained for long term investigation . |
| 3 | Records of public weighings must be retained for inspection for a period of at least two years . |
| 4 | a copy of the advertisement must be retained for at least three years . |
| 5 | To understand adequately a system the user requirements , functional specifications as well as user documentation must be retained for life of the data . |