Bibivalent
[化]双二价的
🗣️ 情景例句
I can get some of my friends to go around the neighborhood
我可以叫我的朋友们在这社区
It is never too late to learn.
什么时候学习都不晚。
I had left it on a chair beside the door and now it wasn't there!
我曾把它放在门边的椅子上，可这会儿不见了！