以差价购买

【经】 buying on margin

以的英语翻译：

according to; as well as; because of; in order to; take; use; with
【医】 c.; cum

差价的英语翻译：

price difference
【经】 price difference; price spread

购买的英语翻译：

buy; detriment; purchase
【经】 buy; purchase; purchases