Fentanyl
[化] 芬太尼
🗣️ 情景例句
How do you say that in English?
那个用英语怎么说？
A handful of common sense is worth a bushel of learning.
少量的常识，当得大量的学问。
Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned.
有时，保密竟达到了这样的程度，即连研究工作的整个性质都不准提及。