Cef
[医][=centrifugation extractable fluid]离心提取液
🗣️ 情景例句
They really cleaned me out.
他们把我洗劫一空。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码，这些瓶子可免费保存两个月。
Not until last week did I get a work permit.
直到上周我才拿到工作许可证。