学个词--burnish
burnish 的意思是擦亮，增色。 Twitter has been important in burnishing the image of President Donald Trump, but the social media company has recently begun to flag Trump's tweets when they are deemed misleading. 推特对于为特朗普总统的形象增色一直很重要，但是最近这家社交媒体公司在认为特朗普总统的推文具有误导性时，开始为他的推文加上警告标示。
Some analysts suspect Kim Yo Jong, sister to North Korea's leader, may now be raising tensions with South Korea in order to burnish her military credentials and alleviate concerns about her rise within the country's leadership. 一些分析人士怀疑，朝鲜领导人金正恩的妹妹金与正现在可能正在加剧与韩国的紧张关系，以提高她在军事方面的资历并减少人们对她在朝鲜领导层中升迁的担忧。
好的，我们今天学习的词是 burnish, burnish, burnish ...