Polyketide
聚酮化合物
🗣️ 情景例句
We have brought this transaction to a successful conclusion.
我们已成功地达成了协议。
What time is it now?
现在几点？
He showed that the average individual's sleep cycle is punctuated with peculiar bursts of eye-movements,
他指出，平常人的睡眠周期中不时伴有一阵阵奇怪的眼球队活动，