Nbcs
[医][=newborn calf serum]新生牛血清
🗣️ 情景例句
OK. Let's have a look at it.
好，让我们来看看。
The wise man knows he knows nothing,the fool thinks the knows all.
聪明人自认一无所知，愚笨人自负无所不晓。
They have a character, perhaps two;
他们心中有一个或两个角色。