单词	gas mask
释义	gas maskˈgas mask noun [countable] a piece of equipment worn over your face to protect you from poisonous gases, especially during a war
随便看	second cousin second-degree second derivative second-guess second hand secondhand secondhand smoke second-in-command second language second law of thermodynamics second lieutenant secondly second mortgage second nature second-person second person second-rate second sight second-string Second World War secrecy secret secret agent secretarial Secretariat

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。