条款写得很清楚喔~请参阅 Terms of Use:8.Any order to Sell within THIRTY (30) Calendardays of last purchase (LIFO – Last In, First Out)will cause Account Owner's account to be assessed aShort–Term Trading Fee of $19.99; For the purposesof calculation the day of purchase is consideredDay 0. Day 1 begins the day after the date ofpurchase.http://ppt.cc/CVk5 红色标示处点开有详细规定