After the Duke of Milan fell from power in 1499, Leonardo traveled around Italy, taking jobs to paint pictures.
在1499年米兰公爵失势之后，达芬奇开始了环绕意大利的旅行，以绘画为生。
But when the new power from the use of tools has been exploited, the rate of world population growth fell and became almost stable.
但当工具的使用所产生的新动力被充分利用以后，世界人口增长率下降并且趋于稳定。
A passenger on a Metro train that burst into flames in Melbourne's north today has told of her fear when overhead power lines fell onto the train, blocking the exit from the burning carriage.
一列地铁在墨尔本北部着火，一位乘客讲述了她当时的恐惧。当时，车顶的供电线路段落在车身上，燃烧的车身使得出口被堵。
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