Polyketide
聚酮化合物
🗣️ 情景例句
We had a summer house on Fire Island.
我们在火岛有一所避暑别墅。
The ground around here is stony and not very good for farming.
在这里附近的地多石做为耕作不很好的。
Yes, of course. It's very easy.
那当然。煮它（豆腐）并不难。