Nrdc
abbr. National Research Development Corporation <英>国家科学研究开发公司
🗣️ 情景例句
and then we'll figure out what to do today.
然后我们再决定今天做些什么。
Not at all.
好。
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，