weak·en 
(wēkən)
(wēkən)tr. & intr.v. weak·ened, weak·en·ing, weak·ens
To make or become weak or weaker.
weaken·er n.
| 单词 | weaken |
| 释义 | weak·en (wēkən)tr. & intr.v. weak·ened, weak·en·ing, weak·ens To make or become weak or weaker. weaken·er n. |
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