[00:05.32]exchange:v.交换,兑换,调换;n.交换;交易所;兑换,汇率 [00:07.57]extraordinary:a.非凡的,特别的,破例的;离奇的;特派的 [00:10.10]failure:n.失败;失败者;不履行;缺乏;故障;不及格...