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
If you don't apply to the relevant department your passport will never be approved.
如果你不向有关部门申请，你就得不到护照。
We can't afford the expense.
我们不能付出那些花销。
The small ship, Elkor, which had been searching the Barents Sea for weeks, was on its way home.
小船“埃尔科”号在巴伦支海搜寻了几个星期之后，正在返航途中。