Central ion or atom
[化] 中心离子或原子
🧩 词语组成解析
ion
['aiən]
n. <物>离子;
or
[ɔ:,ə]
conj. 或，或者;还是;不然，否则;左右;
prep. <古、诗>在…之前，比…更早;
n. [纹章]黑金色、黑色;
🗣️ 情景例句
But we found nearly half on them were mouldy. We can't accept them anyway.
但是我们发现差不多一半发了霉。无论如何我们不能接受。
That is why we have asked you to come tonight.
这也就是我们今晚请你们来的原因。
that the traveller abroad thereby denies himself the opportunity of getting to know the people of the country visited.
说这种封闭的作法使到国外旅游者失去了了解所去国家人民的机会。