Marrowed
n. 髓, 骨髓；脊髓；最深的地方；精髓, 精华；实质
🗣️ 情景例句
we are.
是的。
There is no royal road to learning.
治学无坦途。
Let's move on to what makes our product sell so well.
让我来说明是什么原因使我们的产品销售得那么好。