on prep.在...之上；由...支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班
双语例句
If the stock market plunges and you own shares on margin, you could receive a margin call from your broker, asking that you add more cash or securities to your account. 如果股市下跌，而你拥有通过保证金购买的股票，你就会收到经纪商追加保证金的要求，让你向帐户中追加资金或是股票。
