Quadravalence
四价
🗣️ 情景例句
The best man always keeps the rings.
男傧相总是保管戒指的。
As you can see in this photo, we've retained the same style which was so popular in this old model.
正如你在这张图片上所看到的，同风格的这种旧型产品非常流行，我们保留了它。
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。