A biography of the dancer Isadora Duncan, the 1920s dancer who forever changed people's ideas of ballet. Her nude, semi-nude, and pro-Soviet dance projects as well as her attitudes on free love, debt, dress, and lifestyle shocked the public of her time.曾零星发现了铁(tiě )矿的存在，找了一些铁(🎦)矿试验，可惜铁(🏿)(tiě(🍚) )矿的(🔹)熔(róng )点太高，就算是用上了高炉，也无法炼制出需要的铁料，最终只能暂时放(fàng )弃，继续炼制铜矿(kuàng )。