| I | weaken |
|---|---|
| you | weaken |
| he/she/it | weakens |
| we | weaken |
| you | weaken |
| they | weaken |
| I | weakened |
|---|---|
| you | weakened |
| he/she/it | weakened |
| we | weakened |
| you | weakened |
| they | weakened |
| I | have | weakened |
|---|---|---|
| you | have | weakened |
| he/she/it | has | weakened |
| we | have | weakened |
| you | have | weakened |
| they | have | weakened |
| I | had | weakened |
|---|---|---|
| you | had | weakened |
| he/she/it | had | weakened |
| we | had | weakened |
| you | had | weakened |
| they | had | weakened |
无例句可用
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单语范例（未经PONS编辑处理）
Some people destroyed graveyards of their enemies to weaken their qi.
en.wikipedia.org As the end of the breeding season nears, after he has reared several broods, he has weakened physically.
en.wikipedia.org It produces motor phenomena in the body, erections and seminal emissions, that are intended to deprive the patient of his male potency and weaken him.
en.wikipedia.org Furthermore, the building was reinforced with un-insulated steel girders which quickly weakened and collapsed when heated by the flames.
en.wikipedia.org Along the coast, tides caused beach erosion, inundated streets, and weakened foundations.
en.wikipedia.org