margin transaction的用法和樣例：
例句
- The growth in margin trading of fx has been a watershed idea that has taken hold within the past few years.
外匯保證金交易這幾年的增長是這個概念的一個轉捩點。 - Similarly, margin trading has yet to get the nod because of fears that investors will abuse the potential for leverage.
同樣，保證金交易仍未獲得中國政府首肯，原因是他們擔心投資者將濫用槓桿潛力。
