Coumarin
n. 香豆素, 氧杂萘邻酮\\n[化] 香豆素1,2-氧萘酮
🗣️ 情景例句
Don't walk on the grass or you'll be in trouble with the law.
不要踏进草地，不然的话法律会找你麻烦的。
It is no honour for an eagle to vanquish a dove.
老鹰胜鸽，不足为荣。
Was it Su Lin?
是苏林吗？