Coumarin
n. 香豆素, 氧杂萘邻酮\\n[化] 香豆素1,2-氧萘酮
🗣️ 情景例句
Look, they have a special offer on leather shoes.
看，他们这儿皮鞋有特殊优惠。
I ate eggs for breakfast yesterday.
我昨天早饭吃的是鸡蛋。
He noticed at once that discipline was slack: the Danes had the self-confidence of conquerors, and their security precautions were casual.
他马上发现丹麦军纪律松弛，他们以征服者自居，安全措施马马虎虎。