| I | refine |
|---|---|
| you | refine |
| he/she/it | refines |
| we | refine |
| you | refine |
| they | refine |
| I | refined |
|---|---|
| you | refined |
| he/she/it | refined |
| we | refined |
| you | refined |
| they | refined |
| I | have | refined |
|---|---|---|
| you | have | refined |
| he/she/it | has | refined |
| we | have | refined |
| you | have | refined |
| they | have | refined |
| I | had | refined |
|---|---|---|
| you | had | refined |
| he/she/it | had | refined |
| we | had | refined |
| you | had | refined |
| they | had | refined |
单语范例（未经PONS编辑处理）
Two hand controls are used to select new displays and to refine targeting information.
en.wikipedia.org After extraction at a cost of $2 per gallon, the oil will be refined at less than $3 a gallon.
en.wikipedia.org In 1943, the company moved into refining oil.
en.wikipedia.org It would take another 30 years until the technology had been refined and the size of the iron stove been reduced enough for domestic use.
en.wikipedia.org Gradually, these items were refined to be more decorative, as a way to increase their value in trade.
en.wikipedia.org