Quadrivial
n. （古罗马和中世纪）四科（算术、几何、天文、音乐）之一\\na. 四路交叉的, 四高级学科的
🗣️ 情景例句
We can learn a lot by asking.
我们到处问问会学到不少东西。
Are there reserved seats on the train?
车上有预订座位吗？
So I don't think she's left the college. And her papers and books are all over the desk.
所以我认为她还在学校。而且她的作业和课本都放在桌子上。