| I | subtend |
|---|---|
| you | subtend |
| he/she/it | subtends |
| we | subtend |
| you | subtend |
| they | subtend |
| I | subtended |
|---|---|
| you | subtended |
| he/she/it | subtended |
| we | subtended |
| you | subtended |
| they | subtended |
| I | have | subtended |
|---|---|---|
| you | have | subtended |
| he/she/it | has | subtended |
| we | have | subtended |
| you | have | subtended |
| they | have | subtended |
| I | had | subtended |
|---|---|---|
| you | had | subtended |
| he/she/it | had | subtended |
| we | had | subtended |
| you | had | subtended |
| they | had | subtended |
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单语范例（未经PONS编辑处理）
The bracts which subtend the flowers are shorter than the calyx.
en.wikipedia.org More generally, the arc length of a portion of the circumference, as a function of the angle subtended, is given by an incomplete elliptic integral.
en.wikipedia.org The main graduated arc subtends 30 as in the backstaff.
en.wikipedia.org The flower is stiff and persistent with stout pedicels 5-8 millimeters long and bracts subtending flowers 4-10 millimeters.
en.wikipedia.org The two species can be distinguished by the length of the perianth bristles subtending the achenes.
en.wikipedia.org