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
It's quite different from what I expected.
这与我预想的很不相同。
Let's cross the bridge when we come to it.
既来之，则安之。
I saw him playing football on the playground.
我看见他在操场上踢足球。