영어 문장 자연스럽게 번역하는 것 좀 도와주세요

영어 문장들을 해석해봤는데 자연스럽게 옮기기가 어렵네요 ㅠ
아래 문장들 번역을 도와주시면 감사하겠습니다.
1. Ivory can be stored so that it does not deteriorate, and the large quantities taken by former hunters have provided stores of ivory.
2. Travellers have reported that as late as 1863 Iceland had only one school.
3. The mild winters, good pasturage all year, and plenty of water in the blugrass region make the state a good place for stock raising.
4. The ships were able to go to the aid of sinking ships and save many lives.
5. A parole from prison is granted by a parole board under the condition that the paroled convict report at stated regular intervals to a person appointed by the board.
6. Christopher Columbus returned home, having explored much of the New World to open the way for settlement.
7. Kildeers spend the winter as far south as Peru.