a chemical element造句

例句与造句

1. For the first time ever , scientists have been able to create a chemical element that can fight cancer cells
   科学家们首次研制出了抵抗癌细胞的化学元素。
2. Atom is the smallest possible amount of matter which still retains its identity as a chemical element
   元素系不可以再用化学反应分解的最简物质，并由拥有相同质子数目的原子组成。
3. Polonium is a chemical element with the symbol po and atomic number 84 . it is a silvery white metal
   钋polonium是一种化学元素，它的符号是po ，原子序数为84 ，它是呈银白色的金属。
4. It's difficult to find a chemical element in a sentence. 用a chemical element造句挺难的