Quadrivalent element
[化] 四价元素\\n[医] 四价元素
🧩 词语组成解析
a. 四价的\\n[医] 四价的
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
🗣️ 情景例句
We have a baby now.
我们现在有一个小宝宝了。
Politeness costs nothing and gains everything.
礼貌不费分文而可赢得一切。
The former method simply consists of setting an elephant to work and beating him until he does what is expected of him.
强硬法就是驱使象去干活，把它打到顺从为止。