noun
margin
/'mɑ:dʒin/
margin 是什么意思
利润率，边缘
The boundary line or the area immediately inside the boundary an amount beyond the minimum necessary the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities the blank space that surrounds the text on a page.
词性
noun
难度
挑战
页面用途
检索复习