Polydeter
多行列式
🗣️ 情景例句
She'll be fine.
她没有问题。
It is too late to come with the water when the house is burnt down.
马后炮。
as Walter Sullivan has put it in his excellent book, We Are not Alone.
正如沃尔特·沙利文在其杰作《我们并不孤独》中阐述的。