单词：cations
n. 阳离子；正离子（cation的复数）
n a positively charged ion
单词：cations 相关文章
By Melinda Smith Washington, DC 11 December 2006 watching Skipping Medications Skipping medications can be harmful The older we get, the more medications many of us seem to need to stay healthy. It takes more than just a good memory to keep track of
发表于:2019-02-06 / 阅读(204) / 评论(0)
2006年VOA标准英语（十二月）
2006年VOA标准英语（十二月）