It tells the story of a woman who must save her unborn child and herself when she is possessed by a powerful ring.这是最简易的炼铜(tó(🌚)ng )方法(🚫)，底下用木炭(🥗)燃烧(shāo )，等(děng )温度达到铜的熔点，铜会(huì )从矿石上变成铜水流(liú )下来。