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
His studies advanced steadily.
他的学业不断进步。
Would you please tell Mr. Cooper I called?
请您告诉库珀先生我打电话了？
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些计划去偏远地区旅行，或在饮用水不现成的国家居住的人，应该知道如何使水适于饮用的各种办法。