| 单词 | retroactive |
| 释义 | retroactive retroactive adj: (applicable to the past) SC 有追溯效力的 yǒu zhuī sù xiào lì de SC 可追溯的 yǒu zhuī sù xiào lì de，kě zhuī sù de TC 可追溯的 The fees are retroactive, so you have to pay for the entire month even though you didn't move in until later. |
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