单词 | trace element |
释义 | trace elementˈtrace ˌelement noun [countable] science, chemistry 1a chemical element that your body needs a very small amount of to live2a chemical element that only exists in small amounts on Earth |
随便看 |
英语词典包含48224条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。