Cyclooligomer
[化] 环低聚物
🗣️ 情景例句
I've been thinking a lot about our responsibilities
我对于我们的职责想了很多
What was that?
你说什么来着？
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，