催单 meaning in Chinese

reminder

If the stock goes down, the broker issues a "margin call", and the investor is required to pay an additional amount into the account .
如果股票跌价，经纪就给投资者发出“保证金催单”，要求他加付款项。
" we did , " she explained . " bruno bit the mail carrier who was delivering your card .
“的确如此， ”她解释道。 “布鲁诺咬了给你们送催单的邮递员。 ”
If the stock goes down , the broker issues a " margin call " , and the investor is required to pay an additional amount into the account
如果股票跌价，经纪就给投资者发出“保证金催单” ，要求他加付款项。