K-r
[医][=an anti-cancer compound extracted from trypanosomes]从锥虫提取的一种抗癌复合物
🗣️ 情景例句
As your uncle, I have always tried not to interfere in your affairs and I don't intend to begin now.
作为你的叔叔，我尽量避免干涉你的事情，我现在也不打算这样做。
Actions speak louder than words.
坐而言，不如起而行。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？