| 单词 | atomic number 20 |
| 释义 | atomic number 20 (extremely rare) n WORD FAMILY atomic number 20 n a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals Syn|Hypo|Hyper Ca, calcium calcium ion, factor IV ion of calcium; a factor in the clotting of blood metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
| 随便看 |
|
英语词典包含147318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。