Ccsf
[医][=cerebrospinal fluid(drug)concentration]脑脊液（药物）浓度
🗣️ 情景例句
This is heaven, Harry!
这简直是天堂， Harry！
Is the distribution of wealth uneven in your country?
在你们国家财富分配得均匀吗？
The plane was then able to rise and it cleared the mountains by 400 feet.
于是飞机可以上升了，它在离山头400英尺的高度飞越了过去。