It was heavy, dirty, and tedious work to separate and measure the various substances, but Marie was able to discover two in 1898. She named one substance polonium, after her motherland of Poland.
3
斯廷森先生对亨利.鲁姆斯说:你和你的两个兄弟非常幸运,你们应该以感恩的方式为祖国效劳。
He told Henry Loomis that he and his brothers were very lucky in life and that they should serve their country as a way to give thanks.