常見例句Radium and uranium are radioactive elements. 鐳和鈾是放射性元素。C comes after B in the alphabet. 在字母表中C接在B後麪。B comes before C in the alphabet. B在字母表裡排在C之前。He was the discoverer of the element radium. 他是鐳元素的發(fā)現(xiàn)者。She left out a "c" in "account" . 她在"account"這個(gè)詞中漏掉了一個(gè)"c"。Radium is a radioactive element. 鐳是個(gè)放射性元素。 返回 radium-C