a commissioned officer in the army or air force or marine corps holding the lowest rank
Most of the 1,000 graduates will serve as Army second lieutenants, many of them in Iraq and Afghanistan.
VOA : standard.2010.05.22
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。