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
Right.
好的。
I can come any time except Sunday.
除星期天外我都能来。
I usually come by bus. What about you?
我平常乘公共汽车。你呢？