Fallan法兰fallv.落下；倒下；来临n.秋天；落下；瀑布fallback data rate退守数据速率falling viscometer落球粘度计Fall from building自楼房跌落fall short of goal未达到自己的目标fall on one's legs跌而不伤,运气好,侥幸摆脱困境fall for something相信某事fall into disfavorvi.失宠(失众望；不受爱戴)Falling off period脱落期fall to sb's sharefall-off of step失(去同)步

1. The international exchange rate fell by two cents today.
   今天的国际兑换率下降了两美分。
2. Car passenger casualty rates have fallen by 30 per cent.
   车辆乘客伤亡率已经下降了百分之三十。