Retroactively
adv. 逆动地, 追溯地
📖 牛津释义
retroactively
adv.
🗣️ 情景例句
That is a great idea.
这是个好主意。
I had to pay three dollars for my club fee.
我付了三美元给俱乐部
What about the Natural History Museum? So far as I know, it's free.
去自然历史博物馆怎么样？据我所知，那儿是免费的。