Umbelactone
羟甲基甲基呋喃酮
🗣️ 情景例句
He'd been two-timing me for months.
他另有所爱，多少个月来一直在瞒着我。
Let me go.
让我走。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？