Cnrs
abbr. 法国科学研究中心（The French National Center for Scientific Research ）；含枸橼酸盐的正常兔血清（citrated normal rabbit serum）
🗣️ 情景例句
It was a gradual process, involving many factors.
这是个渐进的过程，涉及到方方面面。
People greet one another with Happy New Year.
人们相互祝福“新年好”。
I'm afraid it's empty.
恐怕盒子是空的。