能源科学技术
雪地履带车
Search teams were aided by helicopters, snowcats and armored personnel carriers with snow chains.
CNN: LAPD to review firing of ex-cop it's hunting
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。