Nief
abbr. non-denaturing isoelectric focusing 非变性等电聚焦
🗣️ 情景例句
If you don't apply to the relevant department your passport will never be approved.
如果你不向有关部门申请，你就得不到护照。
We never know the worth (or value) of water till the well is dry.
井枯方知水可贵。
Have you received a letter from Jim yet?
你收到了吉姆的来信没有？