a noncommissioned officer serving as chief administrative officer of a headquarters unit of the army
large blue-grey black-striped damselfish; nearly worldwide
同义词：Abudefduf saxatilis
Typically the men worked for 10 to 12 hours from 6am, living in dormitories in wooden nissen huts, and they were supervised in military-style discipline by former police officers or sergeant majors.
BBC: Work camps that tackled Depression
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。