您要找的是不是：
n. 离子（ion复数）
n. 爱奥那岛（苏格兰一小岛）
Experts at N.I.aH., the National Institutes of Health, suggest some ways to treat excessive earwax yourself.
VOA : special.2010.03.31
So, what we're saying is that we have n equals to 4, and m sub I being equal to negative 2.
我们说的是ｎ等于４,ｍｌ等于－２
化学原理课程节选 : 麻省理工公开课
But it grows pretty rapidly, as n goes up, and I'm going to show you an example in a second.
解决问题需要的时间会急剧增长，一会儿我会让大家看个例子的,我想大家注意的还是。
计算机科学及编程导论课程节选 : 麻省理工公开课
The experts at N.I.H.say you may have to repeat this process a few times.
The Pavlovsk Experimental Station is part of the N.I.Vavilov Institute of Plant Industry.
VOA : special.2010.08.24
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。