Radioactive purity
[化] 放射性纯度
🧩 词语组成解析
🗣️ 情景例句
Because the United States is the most important trade partner.
因为美国是我们最重要的贸易伙伴。
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
Parents are often upset when their children praise the homes of their friends and regard it as a slur on their own cooking, or cleaning, or furniture,
当家长听到孩子赞扬自己朋友的家时，总感到不安，认为这是孩子在嫌弃自家的饭菜、卫生、或家具，