| I | sap |
|---|---|
| you | sap |
| he/she/it | saps |
| we | sap |
| you | sap |
| they | sap |
| I | sapped |
|---|---|
| you | sapped |
| he/she/it | sapped |
| we | sapped |
| you | sapped |
| they | sapped |
| I | have | sapped |
|---|---|---|
| you | have | sapped |
| he/she/it | has | sapped |
| we | have | sapped |
| you | have | sapped |
| they | have | sapped |
| I | had | sapped |
|---|---|---|
| you | had | sapped |
| he/she/it | had | sapped |
| we | had | sapped |
| you | had | sapped |
| they | had | sapped |
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单语范例（未经PONS编辑处理）
However, they can not easily be kept for longer than a day or two, given that they need flowing sap for food.
en.wikipedia.org A container is fastened to the flower stump to collect the sap.
en.wikipedia.org The sap is processed by heating to evaporate much of the water, leaving the concentrated syrup.
en.wikipedia.org As well as eliminating bacteria and cellulose material, the reverse osmosis machines remove up to 75% of the water from the sap.
en.wikipedia.org The partially circular depressions on the left side of the channel in the image above suggests that groundwater sapping also contributed water.
en.wikipedia.org