(noun.) an amount beyond the minimum necessary; 'the margin of victory'.
(noun.) the blank space that surrounds the text on a page; 'he jotted a note in the margin'.
(noun.) the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities.
(noun.) the boundary line or the area immediately inside the boundary.
伯特兰校对
哈伦校对