石墨电刷
Reporter Mark Daly went undercover as a trainee officer and secretly filmed recruits at the Bruche National Training Centre in Warrington, Cheshire.
BBC: NEWS | UK | England | Manchester | Police and BBC in racism meeting
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。